That's what FireEagle [1] was designed for. All of your devices only send location information to FireEagle, then you register applications with FireEagle to r

That's what FireEagle [1] was designed for. All of your devices only send location information to FireEagle, then you register applications with FireEagle to receive your place data. Your location is secured by defining granularity per-application (e.g. application A can only see the city I'm in, but B can see where I am down to meter resolution, while C is blocked at territory level resolution). [1]: http://fireeagle.yahoo.net/ http://fireeagle.yahoo.net/