I doubt the Nokia board give a crap about platforms/ecosystems, they just want to make a profit for them and their share holders. And I donmt think they're too stupid either, I'm sure the Microsoft Windows Phone move was deemed to be their best rapid chance at profitability in the highend smart phone market, even if you and I don't agree with them.

But they certainly don't give a crap about open source solutions, open development models, etc. They just want to make lots of money and compete with other providers.