Xbox 360's resident spokesman Larry "Major Nelson" Hryb wants you to know that the Xbox Live update preview program is now officially a go, with the first wave of registered participants getting automatically prompted to update upon sign-in (you should also receive an email, but apparently they're behind on the notifications). More people are said to be getting the update "in the coming days," so don't lose hope yet -- not that waiting for Twitter, Facebook, and Last.fm integration, and 1080p instant-on streaming
