Gabe Newell is "disappointed" with Windows 8; actually he recognizes that Microsoft is attempting to close the gates on independent portals like Steam and force users to the XBox Live marketplace.

In response, Valve is putting a full court press on migrating Steam to Linux, particularly Ubuntu and Mint.

http://store.steampowered.com/news/9289/

So with a Linux client, and IF a lot of titles are ported to Linux, will most Sharks abandon Windows in favor of the Penguin?