First, nice review -- time for me to look at KDEnlive!
@vidrazor, Ubuntu's not perfect, but it's popular, and I haven't found it to be too bad. I also run gentoo, but Ubuntu does make things easy. And if i want to dig into the guts, it's debian based, and I've never gotten into debian but love the design ethos of it (infrequent "stable" releases but they make sure they are ACTUALLY stable, and keeping it as multiplatform as possible.) @John Sanders, you are right, they did screw up the Intel driver pretty well. I find it still useable but they should have probably stuck with the older driver, at least in the 10.04 "LTS" release.
@a bunch of people, this is not a review of video editors, period. It's a review of video editors FOR LINUX. Some people want an overview of the best available for their OS, and are not going to change OSes just to do some particular task. I mean, hell, there was a recent 2 articles about handling 60million+ files on a Windows box, despite NTFS and Windows being a bad joke for doing this --- but so what, they were using Windows so that's what they used. Just like almost every video editor on the market, these are missing some features, TheFifth has a good list.. but they are nice for the use most people have for them, cutting some junk out of vidoes and maybe putting in a wipe or two. Obviously, if this is your profession, you should buy whatever custom setup you need to edit video -- this is not what this review is about.
@vincent himpe, one correction I must make, "The problem is that the codecs don't come from the same provider and are not optimized." is incorrect. I mean, it's a problem they aren't optimized to use multicore and CUDA, but they don't have to come from the same provider or be tied to any particular software at all to support this. Fluendo does in fact make codecs that are somewhat faster than stock (DVD, MPEG2, and MPEG4 at least) and they just plug into the regular ffmpeg/gstreamer system. There's really nothing stopping anyone from shipping multicore and CUDA-enabled codecs*, with the beauty being that every app on the system could take advantage of them. Same goes for the Canopus, Avid Mojo, and Matrox hardware.
*Well, there is -- video editing suites cost $1000s, and some of that pays for codec development -- I doubt someone wants to make a multicore & CUDA set of codecs for free.