Each time GoPro releases a new camera, it blows my mind how incredible it is. While it's not necessarily part of the camera itself, my favorite thing about it is the GoPro App. Before the app I used to dread uploading shots to my computer, for them to ultimately sit there and never go anywhere. Now, I can browse them on my phone and select exactly which shots I want to keep. Within minutes I've saved it to my phone and emailed it to myself or posted it on Instragram, FB, Backcountry.com, etc. It's the convenience that allows me to get more out of this camera.
And the shots are incredible, it's damn near indestructible and you can keep it in your pocket. I can't wait to travel with this camera. I'm always nervous to carry a digital SLR, camera bag, lenses, etc. on adventures to less developed places, so ultimately the camera stays at home. I'm confident I can capture the experience of a badass trip with this thing without letting it out of my sight. When necessary, I can put it in my pocket and go surfing. No more leaving the camera on the beach with that unfortunate volunteer to watch after it.
And since there's a mount for everything, I might as well just attach it to whatever I happen to be riding.