Nice article - you really clarify the issues and contenders. I enjoyed the Zacuto camera shoot out videos.
Interesting that with such perceived limitations (recording time, jello, h.264 compression/difficulty editing native files, audio) so many thousands of units have sold and such fantastic work has been created. I am a fan of Tom Guilmette and Philip Bloom's vids on Vimeo and despite the technical limitations, these guys blow me away with what they produce. Philip Bloom was invited to Skywalker Ranch to teach the Lucasfilm gang how to shoot good video with DSLR's.
We picked up a 7d last year, primarily to shoot stills for medical textbooks, but the video on a locked down tripod has been beautiful and useful on many shoots as a 2nd camera angle. It is also great for shooting behind the scenes footage.
http://blogs.creativecow.net/blog/1056/dslr-a-new-beginning
Mike Cohen