Dynamic geofencing with notifications (proximity alerts) ?
Would it be possible to utilize some notification system combined with a dynamic geofence around you or another tracked phone?
i.e. if phone A moves within 500 meter of phone B send a message to each of them (or only one of them) via a notification system that utilizes push notifications (email, xmpp etc.?).
Similarly a notification if a phone leaves the geofenced area, or moves within 500m or so of a predefined fixed point?
I am thinking this could be useful for ad-hoc meetings, but I am sure there are many other ways this could be useful.
Thanks for looking into this :)