Since the WinFX CTP hit the street, I can already see that Longhorn is out of the question. What do I mean? Well, with such a large install base on WinXP and no real advantages to Longhorn, people may as well have forgot about it.
And who says Microsoft hasn’t changed. This was definitely a move for the customers.
Anyway, I predict that the version that is after Longhorn –which includes WinFS, will be the kid to watch. That will be the final fulfillment of PDC2003.