Just google for "android hdmi". They were all over Hong Kong/Taiwan when I was there earlier this year, and generally just had the latest dual-core Android phone guts in a similar tiny plug-in case.
Basically double the specs of Chromecast with a USB expansion slot. That said this seems to just run android with wifi on your TV. I'm not an Android person so I'm not sure what the quality of streaming apps are to compare to Chromecast but they serve different purposes.
This is more like an Android version of AppleTV, and as an AppleTV owner I can say that navigating with a remote is horrible, I only use it for Airplay and XBMC. So there's the issue of how usable is Android stick (the pictures look cool but don't say much).
