I recently picked up an older version of the GoPro at Costco for $199, and have just started playing around with it. The wide angle takes a little getting used to, as does the delay between when you press the shutter and when it actually releases, but it is so compact that I will probably mount it to my video camera and just let it click away for time lapse, and it looks like it will be pretty cool for POV and wet shooting too (with the waterproof housing).
Pretty fun camera. I will probably get the new version before too long. I've brainstormed dozens of ideas to try out, although so far, I've have only used it for BTS stuff (I haven't edited any videos yet):
Not going to replace my Canon's and Nikon's, but definitely a cool little gadget/accessory at a great price. I wish that I had stock in that company...
From same photo sets, shot on a Canon:
I'll post up some photos and videos once I start using the GoPro for real shoots.
ADG