This video below, was one of the first I edited after being filmed on the GoProHD Hero. This camera has been extremely good to me so far, despite the slight lack of contrast and vibrancy while in 60Fps and 720p.
I have run it through a few colour corrections to make it appear a little more vibrant.
Once put through Twixtor, it enables me to have complete control of the speed and length of each frame.
You can see some warping and distortion but this is minimal, even though I have used only raw settings of Twixtor, not implementing any of After Effects extra motion settings such as Frame Blending and Pixel Motion.