Speaking only for myself, I would not rush to drop support of the XP platform, maybe resurrect LogonStudioXP?
I say this because Vista is an abomination - in my experience probably the worst thing since WindowsME. . . come to think of it, I think it is worse.
Because of this (and apparently I am not the only one thinking this way), I intend to stay on WindowsXP well into the life of Windows 7 - say at least 1 year from initial availability BEFORE I even think about going forward. Therefore all things written to support/exploit Windows Vista/Windows 7 is of little interest to me at the moment.
(To support myself, Information Week recently issued an article about Corporate interest in Windows 7, the most asked about feature being WindowsXP compatibility mode. That really says something!)
randyv