An executive switches from company M to competitor N then abruptly throws much of N's development investment in the trash and signs a deal to license all of it from M instead, it smells funny.

I'm not saying anything actually is wrong, I don't know enough about it to care. But what I do see is Nokia being a big employer and part of national pride for Finland. This will likely become an issue in politics there.

They'd be wise not to lay off a single soul due to this deal at this point. Ironically, if Nokia really did need to trim R&D expenses, they may have more trouble doing it now.

Keep in mind the EU is still active in MS antitrust and users are offered the choice of Firefox when they install Windows. I would not want to be the guy who's name was attached to the sinking of Nokia at the advantage of Microsoft.