How can I use my iphone 3 without a sim card - Apple iPhone Smartphone

If you haven't cut your SIM card for iPhone yet, you can take advantage of the SIM card to transfer contacts from Motorola to iPhone. You need to go to your Contacts app and choose Export Contacts to SIM. Then the contacts can be transferred to the SIM card. Now you can cut the card and install it in iPhone, and go to Settings > Mails, Contacts, Calendars, and scroll down to find Import SIM Card Contacts. Now you are able to import the contacts from SIM card to your iPhone.

Another method is using Gmail. Android users can take advantage of Gmail (or other emails provide contacts sync function) to transfer contacts from Android to iPhone. The following tutorial will show you how to do it:

1. Log in Gmail on your Android phone, and check the "Sync Contacts" option (If you are first time to use this method.
2. After Gmail Contacts synced with your Android Contacts, you should turn to iPhone, and tap Settings > Mails, Contacts, Calendars, and tap Add Account. Then choose Google, and enter your Gmail account.
3. After adding Google Account, you can turn on Contacts, and iPhone will ask whether you want to merge with your iPhone contacts. Click Yes and the contacts will be synced to your iPhone.

With the sync function of Gmail, people are able to transfer contacts from Android to iPhone with ease. If you aren't using Gmail on your iPhone, don't worry, you can take advantage of other email services like Yahoo, Outlook and so on.
You can also take advantage of the third-party iPhone transfer software to transfer contacts from Android to iPhone directly. Among all the iPhone transfer programs, iTransfer is regarded one of the best.
http://www.leawo.org/tutorial/how-to-transfer-contacts-from-android-to-iphone.html

You can unlock your network lock on your phone by Remote unlocking method without jailbreaking.If you are interested in this method visit
TheUnlockSpot.com

Borrow your friends sim card or if it's an older iPhone try using redsn0w to hackavate the phone

Don't worry, you can still get the sim cardout. Here is a response with pictures that explains how to do it without theremoval pin tool http://www.wikihow.com/Get-a-SIM-Card-out-of-an-iPhone

It seems that your iPhone 2G is in need of activation. To accomplish this, there are 2 ways:
A. (With AT&T as your service provider)
1. If you do not already have an AT&T sim card, contact AT&T and ask for an AT&T sim card to activate service with them. Choose your plan and insert the sim card in the iPhone.
2. Connect the iPhone to iTunes and you will be prompted to follow a few steps to proceed with the activation process.
3. Sync your iPhone for the first time.
Once completed, you will have your iPhone activated and ready to use on the AT&T network.

B. (Without AT&T as your service provider)
1. You will need to download an application to jailbreak your iPhone. (This will essentially remove certain restrictions on your iPhone 2G that prevent you from utilizing your iPhone on another network, among other things).
2. Connect your iPhone to the computer and run your jailbreak application of choice.
Once completed, your iPhone 2G will be activated and jailbroken. The "emergency call" message will disappear, though you will be prompted with a "no sim card found" message until a sim card from AT&T (or another GSM carrier) is placed in the sim tray.

yes

SIM card slot is in top of iPhone. From iPhone Manual:

If your SIM card was not preinstalled, you must install the SIM card before you can use iPhone.

Install the SIM card:
1 Insert the end of the SIM eject tool into the hole on the SIM tray.
Press firmly and push it straight in until the tray pops out. If you don’t have a SIM eject tool, you can use the end of a paper clip.

2 Pull out the SIM tray and place the SIM card in the tray. The angled corner of the SIM ensures that the card fits only the correct way in the tray.

3 With the tray aligned as shown, carefully replace the SIM tray containing the SIM card in iPhone.