Obviously I've been nerding it up and following the development of this cam and the other DSLR's that now have HD video modes. There are technical issues and major drawbacks, but when used in the right way there is certainly something useful here. They're nowhere near replacing HD video camera's, but the beginning of the road has started to be tread and it looks like an interesting development. RED has suddenly decided to change the spec of the yet to be released Scarlet saying that market conditions have changed, which means they have some competition. If you want to read more about the usability of the 5D as a video camera, you should check out this thread for more info;
http://hv20.com/showthread.php?t=16018
