I bought the moto version and have it mounted to my helmet using the curved mount... my helmet has a nice carbon arch directly across the top and it fits perfectly.

I just got back from a big cycling even called the Sea Otter Classic and a multitude of the best (for the most part) mainstream bike and component companies were in representation. GoPro was there (along with Contour and another) so I bought the bike mount bracket, but have yet to use it... I'll come back tomorrow and tell or show you whats up.

Side note: If you judge by display alone.. the GoPro people seem to be raking in the dough. Twelve, 50in+ 1080p HDTVs relaying Hero video was a bit more impressive than the ContourHD folks double TV setup... or worse - some other brand I couldn't even bother to remember that was having a Special going on for only $200...720p @ 30fps when GoPro was $250 for 1080p @30fps/720p @ 60fps!