Nokia doesn't have loyalties. They're company and the openly admitted prime directive or any company is make money.

If they want W7, they get W7. I see no problem here. Not in implementation (hardware is pretty standard), not in conflict of interests (multiple OSs run now just fine, one more won't matter).

Don't know if it will happen or not, but I certainly see little problem. In fact, since Windows has little allegiance to one line of products (there's a truck full of stuff running Win), if anything it's more likely for Windows to become an option on many future products. IMO, that's what other OSs strive for, Meego and Android included.

Right now the strict associations hurt both manufacturers and developers. I can't think of an instance where having the option to switch from Linux to Windows would hurt sales.

There's a reason PC/laptops do so well. 90% of everything works with 99% of everything.

Frankly, I'm not entirely sure why N900 doesn't run a CE as an option already.