Anybody else try this out? Basically turns your PC into a "console".
It's pretty awesome if you have your PC connected to a TV via HDMI/DVI/VGA, or even just want to use a controller on your PC.
To give it a try, goto your Steam settings and "opt in" to the Steam Client beta. Then hit Check for client updates from the menu.
Also somebody found some new things hidden in the beta, such as the ability to actually choose where the hell your steam games install to! Only accessible via a dev console (command line parameter -dev) right now, but:
Finally you can install certain steam games to your second drive or SSD while keeping the majority of it off of it.