I think the way to figure out which way Nokia is going to go can be seen on how they treat Qt. If they choose to keep it, Meego is going to be the future. If they choose to let it wither and die (or sell it off), Meego will become just a curiosity. Qt is the key for Meego developer adoption, and the only way it could become a feasible smartphone platform. In my opinion there's no point to develop Meego just for the tablet market; it would be really hard when you couldn't leverage the same development effort as on the phone side.