I'm installing shitloads of mods today and I'm surprised I haven't broken anything yet. Look up in the menu bar and there's an option now for XboxLIVE. Put your gamertag in there, just so I can see how it looks. Seems like a neat idea, sorta. Also, there's now an Articles tab up there if anyone wants to write any articles. I don't know why you would. I'll probably accept just about anything, as long as it won't get me in trouble.
There's this notification thing too, where it displays Facebook-like notifications in the corner of your screen when people reply to your posts and stuff. Let me know if that's too annoying.
To add your gamertag, go to Profile/Modify Profile/Forum Profile and input it there.