In reply to rallymania:
> just curious.. is there a chest mount for mobius?
I haven't come across one, but I haven't looked, the Mobius has a standard ¼" threaded mount like traditional cameras and video cameras, so if there isn't one then there must be some adapter somewhere that could be used with a harness for one of the other cameras.
> what's the battery life like in real life (and spares?)
The most recent units have a higher capacity battery than mine, the current claimed run time is over two hours, but I can't vouch for that. No problem with spares, although it is easiest to order the less common things direct from one of the Chinese eBay sellers. There are now three lens options, normal, wide, and a new extra wide angle lens available (significant fish-eye effect though) so it is worth checking out clips on the web to work out which would suit you best.