If you believe the posters in one forum thread, Valve"s content delivery service Steam could soon be making its way to Apple"s Mac platform. But rather than the typical rumours from a friend of a friend who knows somebody that works for the company, graphics and files specifically referencing Mac OS X have been discovered in the current PC version. A file known as C:\Program Files\Steam\resource\menus\osx.menu contains definitions for OS X menus, as well as a form of platform checking in the file Steam\Public\steamui_english.txt with the line:
"steam_welcomeaction_platformwrong" "%gamename% is not available on your current platform."
Steam recently moved from Microsoft"s Trident web rendering engine to Webkit, an engine used by Apple"s Safari and Google Chrome. Valve"s Chris Green has also posted on his Linkedin profile that Valve are interested in Mac and Linux engineers. Historically Valve have given very little support to the Mac, but the debut of Steam on the platform could signal a change of attitude.
Below are the graphics included in Steam hinting at OS X support.