I've had a half baked idea about this for a few years. The thermostat has a terrible screen and is immobile, while my phone is the exact opposite. With Bluetoot

I've had a half baked idea about this for a few years. The thermostat has a terrible screen and is immobile, while my phone is the exact opposite. With Bluetooth LE, and perhaps NFC, you could make a configuration/maintenance interface that allowed for better setting management, using the phone as an interface.