I'm not unhappy to pay for X software. You know even Open Source is not equal "free beer" only "free speech". So people can take money from Open Souce Software if they want - as long the source codes are available. Limewire is a good example.
But I just wanted to add my voice and say big Thank You for the developers for making Linux version of this great game. Without Linux support I wouldn't have made my order just yesterday.
I hope to see support for Linux in the future as well.
I am a Windows user, but I heavily support the idea to make games work on many different platforms. I am actually waiting for the time that majority of games would be available on Linux; I am a gamer, and the fact that most of the games only work on Windows has kept me with it, but games like Dominions 3 are making it possible to be a gamer and use Linux. Maybe some day I will switch from Windows..