Here's something a few of you may find interesting. Ive been creeping around windows7 registry, which is the best place to find out what NEW stuff has been put in.
Looks like MS is putting some solid work into backwards compatibility for legacy titles, in particular those using particular legacy engines and older directplay versions. What the extent of this compatibility work is Im not sure, but its good to see they are thinking of some of those huge global communities that exist around games like starcraft etc. As the image shows, its a step forward from Vista