Company of Heroes wasn't developed for DX10 out of the gate either, it had it patched in recently.
And they've said in the past that DX10 only takes DX9 and improves it slightly. Just like 10.1 is doing to 10.
Bioshock is actually one of the first games to come out with DX10 support.
[Edited by Lyph3, 8/20/2007 1:26:06 PM]
i saw a youtube vid. that showed a big daddy walk into falling(rushing out of wall)water and the water didn't just go through the big daddy like it would in most games. it actuallu went AROUND the big daddy. plus i know that the water physics, body physics, and other things are GEAT in this game. can i get that same power running dx 9? im hoping that dx10 jsut makes the deatail a bit better. PLZ HELP!!