Hello fca!
If you need any help with smartphone interface, then I can help. I am doing network very similar to yours, but I am reading temperature, amount of light and last recieved IR code (IR for turning on and off light in room) plus turning on and off lights via webpage. Now I have only one clitent (in living room - 1st position: Salon), but you can look on source code here: http://77.252.80.15:8085/
PS, please do not turn on and off my light too often 
(just joking, for external users I have only leds connected, not high voltage relays 