Scott Forstall broke his post-dismissal silence to speak on the approaching tenth anniversary of the iPhone. Most interesting output from the talk? That would be the suggestion that Steve Jobs started the iPhone project to spite Microsoft employee who rubbed him up the wrong way.
It's a great story, whose veracity can't really be verified. The details certainly seem to reflect the positions of Apple and Microsoft a decade ago.
True or not, the suggestion of perhaps the most important, certainly the most valuable product of the last thirty years, being kick started by a Microsoft employee showing a distinct lack of class seems too good not to enter industry folklore.