I am eagerly awaiting this. I've been wanting to write my own smartphone apps for a long time. I don't care about writing games, what I want to write is my own music player. I want it to replace the stock music player. I want access to the Bluetooth chipset so I can actually know why the damn thing doesn't just play when my car starts up. I want the music player given priority over all other apps so I get no stutters instead of 4+ per song with my Nexus 5. I want to order my phone's interface around it. I want all other apps shut down when it goes into standby, standby time is the difference between me having to charge my phone before I go out for the night and not having to worry about it.

The music player is 95% of what my phone is doing for me, yet the Nexus treats it as a second-rate concern.

I want Linux on everything, even (especially!) my toaster.