I use multiple calendars in Outlook. All of my dates and appoinments in Outlook don't sync to my iPhone. This is so with iTunes and MobileMe.

Please follow the steps below to resolve your sync issues which applies to iPhone, iPad, or iPod touch. If you make changes during any of the steps below, try syncing again with MobileMe on your iPhone, iPad, or iPod touch.

1. If you are syncing calendars or contacts, view the data on MobileMe Calendar or MobileMe Contacts. If the data does not appear to be correct there, the issue is not with your device. If you are syncing using a Mac, see this article for more information. If you are syncing using a PC, see this article for more information.
2. Make sure your device is up to date with the latest software. To make sure your device is up to date, connect it to your computer, open iTunes, and click "Check for Update."
3. On your device, make sure you are able to connect to the Internet. For example, open Safari on your device, then browse to http://www.apple.com . MobileMe requires an Internet connection to sync. (A 3G or WiFi connection is recommended during setup or when following many of the steps below; they may require several minutes via an EDGE connection.)
4. Confirm that a sync is not already occurring. If a sync is occurring, the activity spinner (in the status bar) will display while looking at Safari Bookmarks (if Bookmarks are currently syncing), Calendar (if calendars are currently syncing), or Contacts (if contacts are currently syncing). If a sync is occurring, wait for the sync to complete, and then see if your data is up-to-date.
5. Make sure you are looking at your full set of contacts or calendars. When configuring your MobileMe account in iOS 3.1 and later, you will have a choice to Merge or Don’t Merge your data. If you choose Don’t Merge, your MobileMe data is kept separate from the data that was already on your device. In Contacts/Calendars, tap the button in the upper left corner until you are able to see all Groups or Calendars, and verify that you are looking at your MobileMe data.
6. Confirm that you are able to get your MobileMe Mail on your device. If you receive an alert message when attempting to get your MobileMe Mail, your account may not be configured correctly, or you may not have a reliable internet connection. If the alert message is about your username or password being incorrect, go to the next step.
   
7. Verify your MobileMe account is configured correctly on your device:
   
   
   1. On the home screen, tap Settings > Mail, Contacts, Calendars.
   2. Tap Fetch New Data, and make sure Push is turned On. Tap Mail... to go back one screen.
   3. Tap your MobileMe account.
   4. Tap Account Info and check the Address field.
   5. Verify that your address appears correct (it should appear as your MobileMe email address, such as membername@me.com or membername@mac.com). If your account does not appear as expected, see the “Delete and re-add your MobileMe account” under the Advanced Troubleshooting section below.
   6. If you received an alert about your username or password during step 6, delete and re-enter your MobileMe password, and then check your Mail again. If your still receive the same message, try logging into www.me.com. If you are unable to log in, see this article.
   7. If your account does appear to be entered correctly, go back one screen and confirm the sliders for the data that you want to sync are set to On.
      
8. Verify that your device is connected to the MobileMe service. To confirm this, visit http://www.me.com/find from a computer. Because Find my iPhone relies on the same connection as MobileMe Sync, your device should be listed as "Online" for as long as it has an active Internet connection. If the device does not appear as expected, please see this article about troubleshooting Find My iPhone.
9. Restart your device: Hold the power button until "slide to power off" appears. Slide to power off. After it is off, press the power button to turn it back on.
10. Wait an hour and try again. Apple may temporarily disable an account from syncing with MobileMe if it is determined that an account may be taking longer than normal to sync. By waiting an hour and trying again, this allows for the previous sync to complete. If you find your account encounters the issue again, go to the Advance troubleshooting section.

Advanced Troubleshooting
If the above steps do not resolve your issue on your iPhone, iPad, or iPod touch, you can try these advanced troubleshooting steps:

Turn all syncing off and then back on
From the home screen, tap Settings > Mail, Contacts, Calendars, and then tap your MobileMe account. Tap the sliders off for each account that your are syncing. If prompted to do so, tap "Keep on My iPhone" (or iPad/iPod touch). Turn your device off and back on, then re-enable syncing. If prompted to do so, choose Merge with MobileMe. Wait a few minutes, and try syncing again.

Isolate the issue to a specific data type
If the above did not resolve the issue, once again turn off all syncing, and then test each data type one at a time. For example, if Contacts syncs successfully, but Calendars does not, focus your troubleshooting on Calendars.
If you have isolated the issue to either Contacts or Calendars that are not syncing successfully (one works, the other does not), see this article recommendations about how to clean up that data on your Mac or PC, as it is likely causing the issue.
Delete and re-add your MobileMe account
If none of the above steps resolve the issue, make sure you have a copy of all Contact, Calendar, and Bookmark data on your device saved on your Mac/PC. From the home screen, tap Settings > Mail, Contacts, Calendars, and then tap your MobileMe account. Tap Delete Account. (If prompted to do so, choose "Delete from My iPhone" (or iPad/iPod touch). Restart your device. After it restarts, on the Mail, Contacts, and Calendars screen, tap Add Account > MobileMe, and set up your account again.

Hi Sir

You Can Use The Itunes App To sync Your Ipad

Now , How to Sync iPad with iTunes 9.1?

There Are 4 Steps .

1. Connect your iPad with the USB cable.

2. Open iTunes and wait for it to recognize your iPad.

3. Depending on your configuration, auto-sync should begin.

4. If not, then manually select whatever features you like to sync your iPad with and press the Sync button.


That’s it! Like I said, it’s the same method like you sync your iPhone or iPod Touch.

you have to use itunes. that is one problem with the iphone, its very dependent on itunes. so to sync your calendar, contacts, messages, or other files in the phone, you have to sync it with itunes.

Make sure time-zone is the same for both iPhone and the computer.

On iPhone setting > Mail,Contacts,Calendars setting > Time Zone Support, make sure you are choosing the city where you are in.

Otherwise, make sure you have updated the iTunes to 7.5 or later.

Update to iTunes 7.5 or later to resolve this issue. If you're not able to update, continue reading for other options to resolve the issue.
Each Outlook calendar event has an internal property known as "Message Class." When some Outlook plug-ins are installed (such as Live Search Maps), the setting for the Message Class property can change from its default of "IPM.Appointment" to something else. iPhone and iPod touch are only able sync calendar events with the Message Class set to "IPM.Appointment," therefore any calendar events created after installing certain Outlook plugins may no longer sync.
To verify this, examine the property of the Calendar event items for MS Outlook and see if the Message Class shows something other than "IPM.Appointment" in any of the calendar events. To view the Message Class property for your Outlook Calendar events, add the Message Class field as one of the columns in the Current View using these steps:

1. Open Outlook Calendar on the computer.
2. Choose View > Current View > Events.
3. For Windows Vista, choose View > Current View > Customize Current View.
   For Windows XP, choose View > Arrange By > Current View > Customize Current View.
4. Click the Fields button and choose All Appointment fields from the pop-up menu in the "Select available fields from" section.
5. In the "Available Fields" column, select "Message Class" and click the Add button.
6. Click OK.
7. Click OK.

Now verify that all your calendar events are showing "IPM.Appointment" for the Message Class column. If you have calendar events showing a different value other than "IPM.Appointment" you will need to perform the following steps to fix the issue.

1. Uninstall any Outlook plugins such as Live Search Maps or other plugins which change the default Message Class "IPM.Appointment" to some other value. Once the plugins have been removed, verify if those calendar events revert back to the Message Class of "IPM.Appointment" so that you can sync the calendar data to iPhone/iPod touch. If you are able to sync, try adding the plugins back one at a time and verify that you are still able to sync.
2. If removing the Outlook plugins does not change the Message Class value for the calendar events, manually change the Message Class value of those calendar events to "IPM.Appointment." For more information on Message Class and how to change the Message Class fields/value, refer to Microsoft's KB article 201087 How to update existing items in an Outlook folder to use a new custom form

Good luck!

Speaking of syncing iPhone with Outlook, you can take advantage of iTunes to sync contacts.

1. Connect iPhone to computer with USB cable, and launch iTunes.
2. Click iPhone icon, and choose Info the Summary Panel in left sidebar.
3. Check Sync Contacts with, and choose in the drop-down menu.
4. Click Apply at the right bottom to start syncing iPhone contacts with Outlook.

When the sync is finished, the contacts will show up in the Outlook contacts. Besides syncing contacts, you can also sync iPhone calendars and mails to outlook as well. But if you have noticed, the sync of iTunes is an annoying issue among iPhone users as during the sync of iTunes, the application may erase the available files in their iPhone.
http://www.leawo.org/tutorial/how-to-sync-iphone-with-outlook.html

You will need to reformat and go again...sorry

You didn't say whether you're trying to sync everything (mail, calendars, contacts) or just some things or one thing (like contacts only). I don't know if you're using an Exchange server or even if you have the info you'll need to sync with an Exchange server.

I have a Windows mobile device (AT&T Tilt) running Outlook 2007 and everything is sync'd. We also started purchasing the iphone for our employees and sync their email, calendar and contacts to their phone.

I could probably give you step-by-step information (based on how I do this for my users at work) if I knew whether you'll use iTunes to do this or Exchange Active Sync and what you want to sync between your phone and outlook. One method (iTunes) will only update your data between Otulook and the phone when you connect it to the computer with Outlook configured on it but, the way we do it at work, they receive email, data, changes, etc in real time.

Try using this link http://www.apple.com/support/iphone/mail/

What you will find here is support topics and instructions for Exchange Active Sync, setting up email accounts, troubleshooting for contact and calendar syncing.

You can also search support on Apple's Web site. Entering the keywords: iphone outlook 2003 will bring up a lot of support info.

You can use iTunes or MobileMe for synchronization. If using iTunes then try this:

You can configure which items are synchronized during a one time set up process. After initial set up, each time you connect the iphone to your computer, the changes made on your computer or device are synchronized.

1. Connect your iPhone to your computer. iTunes should open automatically.
2. In iTunes, in the source list, under Devices, click the entry for your iPhone.
3. Click the Info tab.
4. Select which items you would like to sync. For example to sync only calendars, under Calendars, you would click Sync calendars from, and then click Outlook.
5. Do one of the following:

• To synch all calendars, click All Calendars.
• To limit the calendars that are synched, click Selected calendars and then click the calendars you want to sync.

6. Click Apply.

Hope this helps!

Thanks for using Fixya and you can let me know how helpful I've been by rating this solution.

Try using MobileMe. It will sync your Outlook Contacts and Calendar but not your email wirelessly.You'll have to setup some sort of IMAP or Exchange server to sync your email.