I'm in the Oculus pre-order queue, but still don't have a viable PC. I think some of the pre-release Oculus headsets would run on a Mac. Is it a complete no-go with the production builds?
1) They stopped updating the mac SDK, so probably not.
2) Even if you could get around the above, I would strongly recommend against running the Oculus on underspecced hardware. It won't just look worse -- if your framerate is low enough the judder will make you physically sick.
It's just their store and games they funded not going to be on Mac. There still other VR SDKs like Valve's OpenVR that likely will soon work on any OS with Oculus.
Of course it's won't happen in few days, but it's will certainly appear before official support.
It's not quite that simple. Oculus devices require a server process, which is closed source and Windows-only. Games talk to the server process, which talks to the hardware. OpenVR abstracts the hardware access APIs so games can be platform-agnostic, but it's still built on top of the server process. It's possible someone could build an open source reimplementation of the Oculus server process to run on Mac/Linux, but I think that's unrealistic.
A more likely option is to run the Oculus server process in Wine, and this is something we're actively looking at. (If you're a game/VR dev and interested in doing Real Work to support the Rift or Vive on Linux through Wine, send me a mail.)
Oh, I didn't know they fully dropped this "osvrd" support together with Linux SDK and it's irreplaceable. Looks like I'll need to wait for some other device to buy...