Has anyone else tried this firmware on your EOS camera(s)?
I fired it up last night, and event lets me record 1920x1080 video at 30fps. Alas, no sound for my model, though.
Not bad for an EOS 50D, which didn't have it out of the factory.
Some other quite interesting things unlocked as well. I suspect it would vary by make and model.
I know there is a big "BRICK ALERT" with this firmware, and wouldn't try it on a camera anywhere near warranty. At least if it breaks your camera, you get to keep both pieces! (Their quote).
http://www.magiclantern.fm/