Dave predicts Microsoft's downfall

The idea of Microsoft as the IBM of our age is not a new one.  I think the really interesting questions from that analogy are: what is going to be the PC of our age?  In other words just as the PC distrupted IBM’s iron business, what is it that will cause the eventual, slow death of Microsoft as we know it?  And is it already out there…or yet to come?
Scripting News: Microsoft in it to win?