[munro]

This is great! To me it's surprisingly high. I think this will be a slow process, because spending a day to backup & reinstall your OS is not a fun process. When I have time to game, I just want to turn my computer on and start gaming. I support gaming on Linux, and honestly even I've been too lazy to setup Linux on my gaming machine.

I think the shift will happen as people upgrade their computers, or have to reinstall their OS because of malware. I wonder what percentage of these gamers are using a pirated version of Windows, because my anecdotal experience is that anyone who's built a computer has pirated a copy of Windows. When building a computer on a budget, spending an extra $100 on your video card is more ideal than on the OS. So going legitimate and free would be a very attractive option for gamers.

[abrahamsen]

Thanks, that was my initial reaction as well. I'd have expected it to be a few enthusiasts, maybe something like 50.000 worldwide. 1.85 % of the Steam user base is more than a million players!