Hello,  I have been lurking here and on irc for a while and felt like it was time to introduce myself. 
I have a BB-C4 with all the trimmings and have been booting SD flash with the daily builds and trying different configurations. I have also signed up for weekly testing on the BB.
From the wiki, it looks like I would be most interested in either the Platform Engineering or Working Groups Engineering Units. Specifically, I'd really like to start playing with sound/multimedia, but really anywhere that I can help. 
Is there any
interest in a Middleware:Audio working group?  Or does this fit better 
with the Platform Engineering User Platforms group? I helped 
form the Linux Foundation (OSDL at the time) Desktop Architects Sound 
and Multimedia workgroup and could help with that.
Regards, Kurt Taylor (krtaylor irc)