There are multiple ongoing initiatives for Android on Desktop:
Android as Desktop Operating System[]
Android OS with desktop functionality
- Remix OS - http://www.jide.com/remixos
- Phoenix OS - http://www.phoenixos.com/
- Console OS - http://consoleos.com/
- Android TV OS + desktop UI
Android Desktop box[]
- Remix Mini - http://www.jide.com/mini
Android HDMI Dongle/Stick[]
- GameStick - https://zone.gamestick.tv/home