Here's a bunch of frames.
http://www.rcgroups.com/forums/showthread.php?t=1382503
I have one of rusty's mini quad frames waiting for motors. I'm not sold on the round tubes yet. Will update after a few test crashes.
I'd love to have a frame designed specifically for a gopro with tilt only mount. I could be motivated to finish my basement and setup the CNC machine if someone wanted to help design an open-source fpv quad frame.
If you can lay out the spec required, I can CAD it.