I love the bottom part which is all you really need to know:
After ensuring the "Open Using Rosetta" is not selected, and DivX is installed, you should be able to view your videos in iMovie '06.
If that's not "Mac Friendly" I don't know what is. Thanks Flip! (Warning, their site plays music as soon as it loads...yay!) This from the company who's working with Apple to resolve the problem -like it's theirs- ...yeah, whatever.
Next up we're going to start getting footage recorded via Google's Vidnik.
At least the Vidnik guys have a clue and actually try and fix things:
Quicktime is producing MPEG-4 encoded movies with an edit list. The first displayable frame of the movie is a b-frame, not an i-frame. Other transcoders and players, when they encounter such movies, drop the initial sequence of b-frames from the video. I'm making a change to Vidnik detect that the first displayable frame is not an i-frame, and rewrite those movies, such that the first frame is an i-frame. I'll test, then upload a new version.