Games maker Valve has announced that it will begin offering non-game software through its popular Steam online content delivery platform, expanding the role of the service from a gaming destination to a general-purpose app store for desktop computers.
added..a short, but highly relevant quote from a comment on "el reg"..
Where MS might get hurt is recommendations. "I see you have quite an old version of Word installed. Would you like a new version of LibreOffice?" Would you like to try Amarok? I see you have a TV tuner installed, would you like to try mythbuntu? Hey, if you do internet banking, its a good idea to run your browser from an ISO image under vmware - would you like me to install Mint? I see you have a second dell in the house. If you want, hit F12 when you next boot and you can have a play with the latest Linux system without burning a disk or touching the hard drive. Tired of being pwned? Reboot into steamOS for 15% more fps! Check-out the Steam Productivity desktop - LibreOffice, kopete, kmail, voicemail, + ddi voip for $15/month.
btw.. I'm OS agnostic..I run many boxen ..win and linux, ( no apple? I consider it too restrictive and "walled" ) and android ( very locked down and "phone home less" ) on mobile..