so wie es sich anhört kann "Locale" eine sms schicken wenn du an einen bestimmten ort kommst.. vlt hilft dir diese app ja?

Locale – Allows you to preset your phone’s settings according to conditions, your location, and the time of day. This can be particularly helpful to prevent your ringer from going off during important meetings, events, or when you’re at a specified location. Hence, you’ll never have to worry about forgetting to turn off your ringer again; you simply set it and you’re done. The Locale SMS Plug-in Android app works directly with the Locale app to automatically send SMS messages based on the time and your location. There’s also a Locale Twitter Plug-in that automatically sends out tweets based on your location and the time of day. Both plugins permit you to easily and automatically update your family, friends, Twitter followers, and coworkers about where and what you’re up to.