It is far more easier to have Meego adopt an Android personality, since they're the same kernel inside. They could add Nokia flavor on top.
The far more important decision is positioning; they would've to leave the low-end phone market to chinese, and focus on the midrange.
b) having an OS team has turned into a liability for Nokia. CEOs normally don't care about 'gutting' workforces. In fact, I predict that Elop will cut the 'deadwood' of the old company as soon as he announces whatever on Friday.
c) (edit) Elop has to pay attention to Oracle having sued Google over Java in Android.
No, this is Microsoft establishing a brand in the phone space via take-over of Nokia. Watch and see.
I really hope Nokia doesn't follow the SGI way.
edit: just thought of this... maybe MS will convince Nokia to sue Google?