http://www.neogaf.com/forum/showthread.php?t=1003636
Apparently the Steam consoles/machines will launch this fall in a dozen different configs and will be more powerful than the PS4/X1 "for the same price".
Welp.
If they're under $400 ... I'm in. Steam library poops all over the PS4/X1 libraries, especially if you can run emulators of retro platforms too. They showed Unreal Tournament running at 4K resolution too apparently.