"In the NFL the receiver must touch the ground with both feet within bounds after catching the ball to be in bounds. In the NCAA the receiver only needs to touch the ground with one foot within bounds after catching the ball. "
http://www.answers.com/topic/forward-pass
Unfortunately the NCAA website is being swamped right now for the "official" rules, which whiny pac 10 boy would likely demand after being presented with this.
A foot, or in this case, his ass....