I'm not sure what is going on here, but I have little doubt this is one step in some sort of carefully scripted dance designed to reinforce whatever decision Microsoft has made regarding whether or not they will actually keep XP alive in deference to the apparent wishes of a large number of people or kill it off in favor of their bottom line. I'm pretty sure I can guess where that one will end up, but I can't see why they might bother to go through the song and dance just to leave corporate policy unchanged.
The dilemma for Microsoft is to either please the segment of their customers who don't want Vista over XP and lose money or forge ahead with forcing Vista on everyone, whether they want it or not. The company risks becoming significantly less respected than they are. All the good work they have done with Vista is being lost sight of. And make no mistake; there is good work there.
I expect this will "resolve" to whatever MS has decided in a month or two. The company will announce that "after careful reflection" they have decided to (fill in the blank). Until then, this is at least entertaining.