A fairly simple Bluetooth connection to any smartphone since that wouldn't even need an app on the phone would be nice, and would really just be reusing existing technology would be really nice and I know we cant assume everyone has Bluetooth on their PC, but we can assume they have $10 for an adapter.
I'd love the ability to connect oculus to our smartphone's to use it from oculus dash. To be able to control that with the keyboard and touchscreen just like with the PC desktop from within Dash!
Also It would be cool to be able to pick up a smartphone physically in oculus home and see my screen on it just like with the TV monitor. being able to control it and call with my headset would be cool too.