From what I remember the big killer apps for the PS1 ,XBOX and N64 at launch were FF7, Goldeneye and Halo respectively. The important thing being that these wer

From what I remember the big killer apps for the PS1 ,XBOX and N64 at launch were FF7, Goldeneye and Halo respectively. The important thing being that these were platform exclusive titles. I know plenty of people who bought an N64 for goldeneye and mario kart alone and didn't buy any other titles. Of course Valve does have an atomic bomb in the form of HL3. Assuming they decide not to release a Windows version of HL3 (a gutsy ploy it itself, would piss off huge numbers of gamers) they would still be competing against any manufacturer who decided to sell a Linux based gaming computer. Though perhaps selling hardware is not something they are interested in from a revenue point of view and they just want gamers off Windows and onto something without a competing app store?