[xanderstrike]

Leaks from years ago show that the Steam client and Source have both had Linux versions in development since around the time of the Mac beta in 2010 (two years before Windows 8) [0]. Also they've supported Linux servers forever, so you can hardly say they couldn't care less. Also also, haven't they pushed some stuff upstream and spurred interest and development in open source drivers? That's more than many companies that publish proprietary software on Linux.

Windows 8 may have pushed them over the line, and they may only be moving to Linux in order to make more money. Is that really a problem though? I think it's the breakthrough into the mainstream that Linux has been waiting for for decades.

[0] http://www.phoronix.com/scan.php?page=article&item=valve_ste...