so people who hate windows will ove this. yes thats true. but that is the same reason it wont be a game changer. you already hated windows, this did nothing to change your opinion. the average consumer will use what prevailant and easy and cheap. valve with the steam box doesnt cover those bases. they may be easy, but probably not as easy as a console, they be cheap, but will probably have different price levels so only some will be cheaper, i doubt they will be more prevailant than the big three as vavle has no good means on distribution yet. so just not a game changer. but great for peopl who hate windows (why hate something inamate i dont know).
Edit: in 10 years all people will be using is their cell phones. no need for dedicated devices when a cell phone hooked to a screen will do the same things wi th the same power (almost at least). at least thats how i see the futre, the fight is between iOS, android, and windows 8, of which steam will be supported in all three (i hope atleast, just waiting on android support)
By "hate" I mean that I have a fundamental problem with it.
I'm into open source things. That's what Valve stands for. Hence they've embraced Linux (damn straight).
I don't have the capacity to reply to every one of your points or to attempt to argue against them. Many of your points are certainly valid. I'm just excited by this development that's all :)
But I do see a persistent steambox in the living room of most gamers in the future.