The only reason I would like facetime on my iPad is because they might change the focal length of the camera to something that is longer and more flattering, given that the device would be held farther away from the face.
Ask any pro photographer on what lens they favor for taking pictures of the human face, and I'm sure they will say something at or above 50 mm. The reason for this is simple, focal lengths below 50mm are very unflattering to the face and magnify objects to the point of making them clownish. I don't know the FL of the camera on the iPhone 4, but what ever it is, it makes for one ugly picture of the face, especially if you wear glasses.
Ask any pro photographer on what lens they favor for taking pictures of the human face, and I'm sure they will say something at or above 50 mm. The reason for this is simple, focal lengths below 50mm are very unflattering to the face and magnify objects to the point of making them clownish. I don't know the FL of the camera on the iPhone 4, but what ever it is, it makes for one ugly picture of the face, especially if you wear glasses.