I suspect it isn't so much the design (although as has been pointed out the jump from treo-like to iphone-like is telling), but that a member of a board of dire

I suspect it isn't so much the design (although as has been pointed out the jump from treo-like to iphone-like is telling), but that a member of a board of directors used his access to proprietary company secrets/internal information to directly benefit a competitor company - its a conflict of interest issue at best, and corporate data theft at worst. And I think Jobs took it personally because the Larry, Sergei, and maybe even Schmidt had soliticed his mentorship and advice and for them to turn around and do this to him would seem to me like it would be felt as a personal betrayal.