Launcher controllable using voice or TV remote.
Ranked in these QuestionsQuestion Ranking
Pro Runs on cheap hardware
You can make any TV a smart TV with only a Raspberry Pi.
Pro A free (as in freedom) alternative
To all the proprietary set top box operating systems.
Con Uses KDE applications
There are no Apps designed for the system, instead it modifies the way regular KDE applications are displayed.
Con GNU GPL
This License is much more restrictive than Androids Apache license, which will lead to less developers/interest.