Sure, there could always be an alternative or community-based "MerGo" distribution or few, but the Intel/Moblin team is still in charge of the official, supported MeeGo platform.

Just yesterday I came across a new-fangled edition of Android which was released by some enterprising pseudonym-using russian hacker. Some XDA-based hackers/crackers (no disrespect intended) will load it no questions asked, as will a few unwashed newbies, but personally I'd be very wary/aware of potential foul play.

Same uncertainty principle will apply to most unsupervised variations on the MeeGo theme, meaning that the Intel/Moblin team — as managers of the platform core — will still wield major control on the ARM side support and development of MeeGo.