I'm a little disappointed. I was thinking that they were going to announce the SteamBox. How is a SteamOS going to be any better than if I just built me a dedicated HTPC running Win7 giving me the access to my Steam library as well as all of my other Win7 apps that I would have on there.
So, build a box and load SteamOS on it to run my Steam library, or build a box and load Win7 to run my Steam, Origin, and productivity apps?
I'm not seeing how the SteamOS is adding any value.
Edit: I just noticed the last sentence of the article - The second of three announcements will be made on Wednesday, September 25 at 10 am PT.
Maybe the SteamBox is still in the works!