- Make exe smaller
- One less SDK for developers to download and install
- Native support only by a few sound cards (I know of Creative and NVIDIA)
- Windows SDK maintained by Creative Tech.
- Official documentation too lean
- XAudio2 works as well
- Less diversity
I would still keep the source file in the SVN repo so some Linux guy can modify it a little and use it for the Linux build if he wishes, but I think it would be a good idea to remove it from the windows build.