This is a project run in France called ALERT (Archeologie, Littoral et Rechauffement Terrestre = Archaeology, Coasts and Climate Change) that uses mobile (cell) phone technology to recorded eroding archaeological sites. Really interesting concept.

Remains of eroding Iron Age briquetage on the western coast of the Quiberon Peninsula (Brittany, France) [Barreau, J. B. et al. 2013]