ka1man; It was also mentioned in the comments for the latest blog post that there is an OpenGL build for Windows, as well, but Swen wasn't familiar with the details and thought there were some problems with it. Assuming those issues can be resolved, that may potentially remove the requirement for a DX 11 card in Windows.
That wasn't my point, though .
I just wanted to illustrate that a cheap, 7 year old PC is sufficient to run a game like D:OS EE (on Linux).
OpenGL drivers on Windows (for consumer-grade GPUs) are definitely worse than their DX counterparts (and most likely deliberately so). OpenGL on OSX is also worse than it could be. So the (proprietary) Linux drivers may actually be the best of the bunch. As I said, I've no worries that D:OS EE for Linux would not run on my box.
In all fairness, I have to add that I run stuff at 1280x1024 only ... my 13yo LCD also fails to die on me :-(.