Valve is not going to try to compete with Playstation or Xbox or Nintendo. They will be different.
yes... but will that work ? while I like alternatives and new ideas I have seen a lot of good stuff never make it in the long run. for example back in the day I thought for a time that the Amiga OS and hardware were the way to go, if someone like say Microsoft had purchased that system it might well be what we use today ... but Commodore went under and the Amiga has by-and-large become a footnote in the history of computers. hey they can give it a go and see what happens, I might be as wrong here as I was back in the day when I thought Amiga had a chance and went no where.