Apple and cameras its a looong story. For example, the iPod touch 3G was rumored to have a camera only to have it removed from the planar in the very last second.
According to MissionRepair, the iPad is in the same boat. The picture below shows a case frame they received, along with a camera module from an Unibody Macbook. And, surprise-surprise, it fits:
(http://i47.tinypic.com/15cinbp.jpg)
As of now, not much more is known stay tuned for further info as we get it!