Reminder: Xbox 360 Twitter, Last.fm and Zune Video Go Live Today

Today is the day, people! The day that your Xbox 360 will start showing you new dashboard panels so you can awkwardly Twitter from your console and listen to Last.fm radio, that is! And a few more things.

The update should propagate sometime today—UPDATE: It's live!—but if your Xbox hasn't given you the good news yet, here's what you're in for:

•Facebook – Update your status to share what movie, game or entertainment you're enjoying, connect with friends and view their Facebook stream, status updates and photos on the big screen – all seamlessly integrated and custom-built for Xbox 360. You can even compare your Xbox LIVE and Facebook friends lists to see which of your friends are on LIVE.
• Zune – Zune video on Xbox LIVE offers a full fidelity experience with instant on HD in 1080p and 5.1 channel surround sound. No waiting for downloads or buffering, it's there at the press of a button. You can also share the experience with up to seven friends through voice chat and Avatar integration on the TV screen – it puts a whole new spin on "movie night."
• Twitter – Stay in the know by discovering, posting and replying to Tweets right on your Xbox 360. You can even view friend profiles, trends and conversations, or search to see who's tweeting about your favorite game.
• Last.fm – Discover more music and explore endless personalized radio stations with Last.fm on Xbox 360. Skip, "ban" or "love" tracks to create your perfect mix-we've even built in "Gamer Stations" with game-related types of music selected specifically for the gaming community (Available in the U.S. and UK)

In addition to these social features, Xbox LIVE will also be debuting "News and More," a new section of the "Inside Xbox" channel, transforming Xbox LIVE into a full-fledged media portal. With a regularly-updated stream of content from MSNBC, The New Yorker and Dilbert, "News and More" brings the latest in current events, arts and entertainment right to your fingertips.