Well, if you mean supporting it under bootcamp, then the 8600s in the MBPs and the 2400/2600s in the imacs already suppot DX10.
DX10 has nothing to do with OS X, so in that sense - no, never.
As Muncher mentioned, the 8600 and Radeon HD2xxx cards support DX10 in Windows. The next range of cards for the Mac Pro will as well (the current cards do not).
Yes I know that it does nothing for OSX... I posted this on the "Windows on the MAC" forum, and Microsoft VISTA programs DO support DirectX 10. Will the 8600 or Radeon HD2 cards come to the mac -or are you saying it will never happen? Can you only have an OpenGL or DX10 card or can they produce one card that supports each?
Thanks for the help!
The stock card will likely continue to be a sub-35W card, so if you can see any DX10 cards running about 25W they may make the cut -- with the other card company getting a 135-140W card.
And a Quadro update will likely again make the cut, but it isn't a good gaming card anyhow since the drivers aren't optimized for that.
Interesting... so, DX10 gaming via bootcamp may not happen anytime soon? How about 3D Graphic Programs... do they take advantage of DX10 or is this really only for games?