As all whom are interested in genealogical research, as I am, headstones are particularly valuable in tracing deceased family members.
Geni http://bit.ly/1jQtSJd has just announced what seems to me a great initiative in further documenting (and translating) headstones from around the world via and app that can be downloaded from http://gjscomp.com/MOJRKY. Works with iOs and Android Devices.
It reminds me of a distant relative whom in the 1960s as a young man travelled the world (specifically visiting cemeteries to record information off of gravestones) to build his extensive family tree.
Genealogy is yet another area where technology and modern communication has made leaps and bounds, putting people in touch with one another, sharing information that would not have been easily possible not so many years ago.