On AVSIM's home page, click on the "Flightsim TV" link for an FSX walk through interview with Microsoft's Shawn Firminger about the latest version of FS.
Shawn is the manager of Aces Studio, and ends the clip showing a rendering of what FSX might look like with DX10.
You have to feel sorry for the guy, their team produced the goods on time, but the VISTA guys dropped the ball. There must have been some fairly hard words on the MS campus.
[Off Topic Plug: co-incidentally on the same page, I have not one but TWO FS movies - Flankers, plus F-16 Thunderbirds! Wonder if they'll publish my B732 NZCH-NZQN flight? Mmmm]