It's been a long time coming but connecting to Live via a Windows PC is finally round the corner. PC gamers will be able to play Xbox 360 gamers and the hardcore gamers could use their PC or Xbox. New firmware updates to the 360 will also allow gamers to connect to Live Messenger while playing their games (I imagine the headset and web cam will work with this too). It also begs the question of whether we'll be able to chat to Yahoo! Messenger users like we can with the current version of Live Messenger on Windows.
I imagine that there won't be much taking advantage of this feature for a while, but it's something to look forward too. Achievements on PC games will be a big bonus for some. It's a small feature but one that enhances playability of a game and prolongs it's life too.