Yes
This clever program, SARLOC, has been developed by someone I am in contact with called Russ Hore (
a friend and member of the Ogwen Valley Mountain Rescue Organisation) and the project is gaining momentum with MRTs having success in the Lakes, Scotland and Wales.
It works by using the geo-location API of the browser on a 'smart phone' to obtain the position of ht e'phone and update a web based database from where the positions can be plotted in Google Maps or passed into a bespoke MR GIS application such as Mountain Map or SARMAN.
I plan to meet Russ to discuss a distress app that I am developing and share my knowledge with him to see if we can work together on a combined project.