1 - Yes and to be fair you can't blame MS for all of that, yes they didn't support the mobile OS (or get the dev's) as well as they should, but Nokia themselves were in a downward spiral already.
2- Creativity and novelty comes from having he freedom to produce 'random things', there's nothing to say a big company could come out with something more creative if they were allowed to focus on the game rather than essentially paying the bills....