Well more companies are going back to installing XP and Microsoft are releasing more serial XP  numbers for manufacturers as not enough in circulation.
And in 3 years time Microsoft will release Vienna or windows 7 if they can make up their mind on name, even if their some hiccups in it.
Ill stick with XP 32 and XP 64 then if i have to update windows i ca bypass vista straight to Vienna or 7 whatever they call it.
And service pack 1 wont be like pack 2 for XP, as vista sp1 will contain only patches and other fixes, no extra software.