Reviews are starting to come out and most are saying much better video than the Hero2
120FPS vs 60FPS
Built in WIFI, IOS and Android app that do alot
Case has tripod mount
$199 for the model without wifi.
Comes with 2 sticky mounts, which are pretty big compared to the gopro ones and they aren't cheap
Microphone is outfront like the contour, so wind noise will be stupid.
Stills suck, but who really uses these things to take stills