My minoHD play back is very choppy on the computer

Chopppy playback on the flip is not due to a lack of motion interpolation because when you play back the video on the flip itself, it is not choppy, and it would be if that was the issue. It only is choppy when you play back on your computer. Chopppy playback on the flip is not due to a lack of motion interpolation because when you play back the video on the flip itself, it is not choppy, and it would be if that was the issue. It only is choppy when you play back on your computer.

If by playing it back on the flip itself, you mean viewing it on the tiny built-in screen, well you would never notice it on a such a small screen.
Poor motion interpolation or 'strobing' as it is more usually known, is a temporal / spatial effect which gets greater, the larger the screen you are watching.
Basically the human brain will only be tricked into seeing video or film as motion, if the distance that an object moves between frames is within certain limits. If this limit is exceeded, then your brain reverts to seeing the video as a sequence of still images, the result is strobe or choppy motion. The issue is further complicated by the fact that every individual has a different threshold for when this perceived phenomium occurs.
Better quality video cameras compensate for this by using selectable longer exposure times for each frame, with the result that any object that has moved between one frame and the next is blurred in the direction it has traveled. Alternatively this effect can be simulated by motion interpolation technology that attempts to remedy the problem by generating intermediate frames that make motion more fluid.
It is true that the problem can get worse when viewed on a computer, but this is sometimes caused when the refresh rate of the computer's display does not match the frame rate of the video clip.
E.G. a 30fps Flip minoHD video clip being viewed on a 70hz display.

Most LCD displays default to 60hz which happily is a multiple of the 30fps of the Flip.
However many cheaper PC display cards do not bother to synchronise the video playback with the refresh time of the of the display, thus making the choppy-ness even worse. If by playing it back on the flip itself, you mean viewing it on the tiny built-in screen, well you would never notice it on a such a small screen. Poor motion interpolation or 'strobing' as it is more usually known, is a temporal / spatial effect which gets greater, the larger the screen you are watching. Basically the human brain will only be tricked into seeing video or film as motion, if the distance that an object moves between frames is within certain limits. If this limit is exceeded, then your brain reverts to seeing the video as a sequence of still images, the result is strobe or choppy motion. The issue is further complicated by the fact that every individual has a different threshold for when this perceived phenomium occurs. Better quality video cameras compensate for this by using selectable longer exposure times for each frame, with the result that any object that has moved between one frame and the next is blurred in the direction it has traveled. Alternatively this effect can be simulated by motion interpolation technology that attempts to remedy the problem by generating intermediate frames that make motion more fluid. It is true that the problem can get worse when viewed on a computer, but this is sometimes caused when the refresh rate of the computer's display does not match the frame rate of the video clip. E.G. a 30fps Flip minoHD video clip being viewed on a 70hz display. Most LCD displays default to 60hz which happily is a multiple of the 30fps of the Flip. However many cheaper PC display cards do not bother to synchronise the video playback with the refresh time of the of the display, thus making the choppy-ness even worse.