Well from what I've heard its been leaked, just like they said longhorn and the earlier version of SP2 was leaked.
But I would think its less embarrasing to admit something has been leaked over admitting you've been hacked, especially if your name is Microsoft.
And to quote the first reply at neowin:
great, another service pack that is going to be more trouble than its worth
.sig - There never was a .sig?
I own a Schneider EuroPC with MS-Dos 3.3 and it works.