A useful software offering the interface for asking for assist by sending the present GPS location together with a google maps hyperlink to configurable recipients by way of SMS or e-mail.
Additionally permits to submit it on fb or tweet it!

Within the "Settings" you possibly can set/unset the recipients.
Within the "Map", the present location might be proven in a map view.

Enhanced with the power to ship morse alerts with sound, to make use of a flashlight and a strobelight.