The autonomic nervous system has two divisions: The sympathetic division acts to energize the body, preparing it for action. The parasympathetic division acts to calm the body, allowing it to rest. Our everyday activities are controlled by the interaction between the sympathetic and parasympathetic nervous systems.
Update: N2Aos is now available for Kindle Fire HD and Kindle Fire HD 8.9. And you get the full Android experience here, including access to the Google Play store and all the other features offered by Android 4.2 (excepting what's not available via hardware, of course).
And if you just want a simple, inexpensive way to stream video to your HDTV using your phone as a remote, the Google Chromecast is an excellent device that lacks an on-screen interface and dedicated remote. That said, the Fire TV Stick puts lots of value into a tiny package, and earns our Editors' Choice.