I'm a video game developper and a geek, now i've got a device like n900 in the end, I wont come to a closed device ( like apple or WP7 ) so i'll wait meego ...

WM7 ? no i won't even looking at this device until they release a sdk which let me using c++ on it
If they do, and if the phone give me as freedom as a n900 would do, i would probably consider using this os ( but how likely it will happen ? )