:shrug: I really don't do steam, mainly because Steam is spyware(albeit, highly tolerated spyware or "safe-spyware" like privacy-data-mine-book...erm facebook.) I usually like having a physical copy of the game(old school, having the manual, and modding the hell out of a game, and not watching Steam throw a shit-fit.)
But yeah, I hope what Valve does, goes well. Since about 2008 or so, I haven't had any issues getting games to work using Wine or other compatibility layers at the expected performance/stability that is demanded of most games to be playable. Sometimes, wine-emulated games run much better under linux, than natively under windows(due to Linux's performance and stability, as well as lack of bloatware that come with certain drivers).
If Valve sells games that are high on the wine-compatibility list, and Linux Steam is a superior front-end to something like "PlayOn", I'll be really excited to see their approach and how it can help the OSS community.
They have a big segment of the market to capitalize on, by running their own secure game-repo.
- Linux Native games(open/GNU)
- Linux Native games(commercial, proprietary)
- Highly compatible Wine releases, with potential front-end.
- And if they are able to ARM-translate, that would open up all of the Android games to be sold off steam, like an app market.
- Last, but not least, pre-configured Dos-box/VM profiles to go along with all of the old favorites.
All of which are very realistic goals. But, as you said, at this point we can only be "curious" to how they approach the migration.
And Linux HTPCs are awesome. I'm running a pretty basic MythTV box. My old DirecTV boxes were running linux too, but now I have Uverse, and as far as I can tell, those are WinCE , which could be counted as windows, but CE is really unique and it would be like counting iOS devices as OSX.