That guy was an idiot. All of his comparison shots were stupid, the canon was blatantly not in focus while the gh1 was. Plus, he didn't even mention what glass he was using.
"if you printed gh1 onto film, most people wouldn't be able to tell the difference from real film"
WOW this guy makes me want to kill babies, 1080p =/= 35mm film.
PLUS the gh1 has a smaller sensor than the t2i/7d and 5d. This guy obviously just don't know how to focus a camera.