okay i just read about Mer in wiki, still because i just got here, and don't know anything about programing and developing =(, i don't understand please tell me if i'm wrong..
so this is what is understand,

OS2008 cannot be upgraded to Fremantle?
That's why the community create Mer that is an upgrade for Diablo?
so the Fremantle also cannot be upgraded to the future Maemo 6 but the community will develop some kind of Mer for Fremantle?

i'm sorry if i sound stupid.. but really i don't understand..