Precis Intermedia has made the genreDiversion 3 rules available for download (PDF) or print. I purchased a copy today, and just finished printing it out. I will try and get it read before Sunday and will write up my thoughts on it then.
In the mean time, check out the product page and the forums for more info about the game. I really liked the genreDiversion i rules that were previously released and this version promises to really take the game to the next level. I am excited.