Well no-one is buying Vista, what better way to get them to upgrade than a stealth bomb to **** up their machines.
Seriously WTF they are playing at here. Was reading a comment earlier from someone with the theory that they've found a bug/exploit so devestating that they've had to take this action.
I wonder what the Chinese make of this too - they famously demanded the windows source code to check for NSA/CIA backdoors and now they're getting stealth code being inserted.