Petapixel found this cool little video shot on the Canon Rebel T2i/550D from a helicam operated by Jeff Scholl who operates GravityShots.com – and they've got some amazing videos on their site (not all of them are T2i stuff) – especially liked their demo reel.
You can watch the video on Petapixel's site as well as reading much more about how it was shot.
Testing out a T2i with 14mm lens at 720 60P. Rendered with 2.35 bars and 24 frames for fun.
(Photo credit: snap from the video)