GoPro App is pretty much invaluable addition when it comes to riding with your handy cam. It has a remote control feature, allowing you to control it from your phone as well as view and delete photos and videos. It also has a realtime viewfinder (so you can see what the camera sees). Some feel the realtime feature is a bit slow with a 4-5 second lag but apart from that it's pretty sick add-on to the GoPro range.
