hmm, sounds interesting, but insanely harsh. if you can't lose weight on a regular diet, good luck on this one. i'm no nutrition expert, but i've done my fair share of research, experimentation, etc.but it seems to add up, the only downfall being you...uhh...don't eat at all. all the props to you if you can stick to this for a month, the loss of weight would be huge due to such a low caloric intake.
the thing that scares me is the similarity between the regular day schedule, and the workout day schedule. i clearly don't think it would be possible to put on any muscle, but depending upon the person you MIGHT be able to keep the muscle mass you have.
oh, and heres a link for others that wish to contribute http://www.t-nation.com/readTopic.do?id=546491&pageNo=0