Here's the bet, for your safety:
If MS lanuches a redesigned console at 299, and it can play 360 games(even if it's name the 3602), it will(combined with all other 360 sales over the same period) outsell the PS3 via a cumlative total from the beginning of its launch week until 01-01-2011.
If you lose, I get your sig space for a month, starting january 5th, if I lose, you get the same.
If no console is launched meeting that criteria, then the best is off. Regarding the redesigned consoles only, if multiple SKUs are launched of the console, and one of the sku's is under 299, then the bet is off. If any of the skus are over 299 the bet is off. There can be only 1 sku, at 299, and it must be combined with existing 360 sales no matter what the prices of those consoles drop or rise to.
In other words, every 360 plus every redesigned 360 sold from launch week until new years will be greater than every PS3 sold from launch week, untils new years.
Bet?