You may recall from yesterday, that Larry 'Major Nelson' Hryb teased an image of a special edition Xbox 360 console which Microsoft was giving away in celebration of Xbox LIVE's 10th anniversary.
At the time, Hryb said the custom Xbox would be given to the Xbox LIVE members that have been with the service the longest. However, it looks like all members have a chance to win it. All you have to do to be eligible to win the Xbox LIVE Anniversary Xbox 360 console is download the commemorative Xbox LIVE 10-year gamerpic by 11:59pm ET on November 22, 2012. By downloading it you are entered into the sweepstakes. A bonus entry will be granted if you are also an Xbox LIVE Rewards member during the promotion period.
You can read the full sweepstakes official rules here.