Don't miss the video of Steve saying "We have always been shameless about stealing great ideas . . . "
This may be why he can reconcile suing HTC while practicing the "great artists steal" mantra.
On the other hand, the legend that Steve lifted the Xerox PARC UI persists -> http://en.wikipedia.org/wiki/History_of_the_graphical_user_i... and
You can take a look at a demo here: http://www.youtube.com/watch?v=JXv8VlpoK_g