In some sense, someone already has, that someone being NVidia. You can access pretty much all of DX10's features from NV OpenGL extensions, under any platform: XP, Vista, Linux, OSX. Granted, it's the extensions are vendor-specific for now (NVidia), but hopefully the Khronos group will standardize them soon.It doesn't look like whoever wrote this has any idea of what they are talking about. DX10 in XP won't happen. Period. Direct X 10 uses a completely new driver protocol for interacting with the system. In order to make Direct X 10 work in XP you'd have to completely rewrite the XP kernel, and make yourself custom videocard drivers. Sure, it they might create something to interface with the video card but it'll never be the same as dx10.
Depend if they bought it only for DX10 or for "extreme" performance in DX9. But it's true that they're not doing too good in DX10.DX10 is overhyped and very much overrated. The current crop of cards cannot run it properly and there is a DX10.1 already in the works. I mostly feel sorry for people that spent $600+ on these new killer cards that won't even run a DX10 game properly.