Erel, Still remember "NetMonitor" in older days Nokia phone? I believe, in this modern days, this will be helpful as well. Let's say, when your phone detects the GSM cell information that you are entering your home zone BTS, an application will send a romantic sms to your wife telling her, that you are approaching home and tell her to be ready for.....dinner. This functions will detect the ID sent by the BTS connected to our phone via GSM network. By utilizing this ID, we can do countless things as we can think of. Could you provide this?