I especially enjoyed the bug crawling across the lens! I have an older GoPro and have posted a few boat videos to youtube. The only regret I have is that I had on the waterproof case and sound level is poor. I had to almost scream and even then most times I can not be heard over the engine and wind noise.
I have also taken a couple of videos of me skiing and ice skating. Not only is it fun, but it provides valuable information on how my technique is.
Cool, makes you want to go out and buy a GoPro.