I can't help but feel that multiple forums will be detrimental to the formation of a cohesive MeeGo community. It's an unnecessary and largely artificial separation of hardware from software, product from development.
What will happen to someone who posts a question in the "wrong" forum - will they be told to b*gger off and post in the correct place (wherever that might be)? For example, someone asking a Nokia related question on the MeeGo forum - will they be told "Sorry, please post in your own forum - thread closed"? Or a Nokia owner with an obvious OS/software related technical issue, will their thread be ignored when posting in the Nokia forum, because the Nokia forum isn't for technical issues? What a mess that will be.