I cannot explain how excited I am about this without writing pages of swearing, mumbling and net style abbreviations like 'OMG'.
So yeah. Good news. *Shakes with excitement*
So this is Capcom's Christmas present to us 360 owners, a demo of Resident Evil 5. I have never been more excited.
The demo is due in Japan on the 5th of December, and there is no news of release elsewhere yet, but knowing the way 360 demos usually go we should all see it around the same time.
Now, another hitch is that it's only available to XBL Gold members... Which you should be anyway. Otherwise there's not too much of a point in having a 360. 
I personally cannot wait...