There is actually software that will stabilize the image and remove rotation, some guys fired a GoPro out of a potato cannon in a 3D printed 'bullet'. Can't remember the URL, but I found it surfing YouTube the other day.
Found it. About the 7:45 mark, they get into the anti-rotation software. Kinda neat video.
[video=youtube_share;S5l7GNJaorU]http://youtu.be/S5l7GNJaorU[/video]