SteamBox = EPIC FAIL! Note it says your just doing SaaS from your already nice Mac/PC to the Steambox to actually play the M$/Mac based game that 'natively' (i.e. coded for LinuxOS) the number of games just really doesn't exist for this 'vaporware'. STEAMPOWERED GO BUY OUT ONLIVE! (www.onlive.com) and use thier code to SaaS games to 'any platform, any device' like your Steambox but make the Steambox a 'undercutting the competition' cost to the consumer. Imagine one of these Steamboxes doing Onlive and the actual hardware being a Haswell i3 with IGP and costing $199! Joe Consumer looks at that then the $2000 cost for a Alienware, or the $500 PS4 ,... only $200 and play all the PC games I want, HELL YEAH SOLD.
Steam is missing the opportunity of the buildup they made, by missing the key point : COST. What Joe 'idiot on techie things' Consumer looks in the store and sees the $249 Walmart PC, the $499 Xbox/PS4, then the $1000-2000 Steambox, what one will they buy? First stupidly (just look at all the forum posts of people whom bought for Xmas APU PCs and wonder why BF4 can't play on it) they buy the cheap PC for thier kids, then they come back and get the console, and would never ever look at the Steambox.