It's not that easy. My personal take (likely wrong) is first, the community needs infrastructure in place with either the understanding that Maemo still belongs to Nokia, the closed bits need workarounds, and the supporting bits from repositories, garage, need to have their level(s) of priority sorted and then the OS handed over to a willing and active committee and developers.

The disputes range from where should this happen, what should continue forward - I see no reason for Brain Storm for instance - and so forth.

Were it so easy as you had described, this thread would be 1 page long.