nothing official yet,but for i want i want both worlds android and android tv,we know the shield tv is a close platform i think dictate from google android tv, thats what its,but so far it seen is like is frustrate for no having touch capabilities or not full google store,its something that we have get use it.
i do have my shield tv root,stock room,using omniswitch app running for quick acces application and droidmote app to use my smartphone as air mouse remote controll, pretty nice.
i am not a hard gamer,i used to have a xbox360 ,no more, i do like to play the fifa franchise,MassEffect,Rocket League, to mention. and do play those trough LiquidSky from Origin and Steam.
dont need any more those chinese android box, i am pretty happy with my shield tv,and i am waiting just for PGS lab to buy the device.but i want too the s192 for two reason tegra k1 and built in controllers.
take care yourself