This new nice system in FRA sends you all necessary updates on the phone. I've just got a third sms on the gate change in the last 30min.

Your departure gate for LH1450 FRA-DME has changed! NEW: Gate B20. Please also check airport information or http://mobile.lufthansa.com, Flight status.

Your departure gate for LH1450 FRA-DME has changed! NEW: Gate B24. Please also check airport information or http://mobile.lufthansa.com, Flight status.

Your departure gate for LH1450 FRA-DME has changed! NEW: Gate B28. Please also check airport information or http://mobile.lufthansa.com, Flight status.