I will try to use the Adafruit Bluefruit Ez-Key Controller along with an app running on the Android device to start applications by pressing one button and go trough menu and settings just like with a full feature Bluetooth keyboard but in a form factor similar to navigation panel in Audi Cars, or maybe something completely different.

The main point is to be able to start apps with just one button press from a distance.

I will appreciate any constructive feedback about my idea.