Bar-code,  What you might try is find someone who pre-ordered who is also a PC member and have them transfer the copy they bought from Eovia to you, in turn they could then buy the PC version.  I asked this of Bob Stockwell last night and he said that was fine.

As to someone wanting to own 2 copies, the EULA allows one to install on as many PCs as you want, providing you are the only user.  Also per Bob.