Very slowly working on getting the demo to try it out.
I think this only install on 2 (or 5, whichever is true) PC's is blown way out of proportion. iTunes has done this since day one, with it you can authenticate 5 PC at one time and thats it. If you screw up and reformat without uninstalling it, you just get all the PCs de-authorized, and there is a limit on how many times you can do this, but if you screw up that many times you deserve to be punished for it. I'm sure Bioshock has a similar setup.