UT 2007 or any UE3 games DX10 or all strictly dx9? Mixed?

i hear ut2k7 will have some dx10 capabilities, but not fully dx10. i'm always trying to find info on dx10 games in development, but have only found some.
crysis
ut2k7
halo 2 for pc

well it's been delayed a couple of times, but i don't think it's because they wanted to implement dx10...pretty sure they'd like to sell 2007 and come out with another title with dx10, they'd make more money that way