I submitted an entry to David Schirduan's 200 Word RPG Challenge. I already revised my submission once and David posted the revision, and since then I have revised it a couple more times - I am not going to keep resubmitting my revisions, at this point I am mostly just messing around with it because it is a fun exercise in conciseness. What can I take out and what can I add. Having read many of the other submissions I have no illusions about winning anything (nor are the prizes particularly exciting) but the process of writing a 200 word class/supplement was a great challenge and got my creative juices flowing. Some of the entries are pretty impressive in that they both give novel rules without reference to a common starting point like D&D (which I relied on) and also are very evocative in describing a setting or milieu.
I don't think my D&Dish sorcerer hack stands up well to some of the other entries, but I still like it. My latest edit is a .PDF with full color background image that I created of a burning hand / embers.