The Chromebit is a Chrome OS computer that ASUS announced back in March. It has an ARM processor, 2G of RAM, 16G of storage, WiFi, Bluetooth and a USB port. It plugs into your monitor's HDMI port. Add a bluetooth keyboard and a mouse and you've got a Chromebox on a stick.
It's available now for $85 and would make a great digital media player. It should be available at Amazon, Fry's and Newegg but as of 6 AM, it isn't in their catalogs.