I think it might be time to separate the forum by hardware, same website of course. Most people have been pretty good putting N800 in the subject line, but I'm noticing that isn't always the case and I click into post thinking is referencing the 770 when it's not. It's probably better to do it now before the N800 starts ramping up with new users.

While doesn't need as many categories, maybe doing something similar to:
http://forum.brighthand.com/