I just got this demo from the MaximumPC cd, and it's pretty good. The demo only includes 3 missions (1 Allies, 1 German, 1 Russian) but so far it looks like I just may buy it when it comes out later this month.
It's an RTS based on WWII scenarios. You control everything except your aircraft. You have some control of the air, by calling in airstrikes to take out pill boxes, or thwart an enemy bomber, but that's about it.
Graphics are decent with alot of detail in the terrain especially.
You can get the demo here:
http://www.blitzkrieg.de/english/index1.htm
