Good question. Amish people actually are allowed to use technology (well, not all, but a good chunk) as long as it doesn't give them an advantage over their fellow Amish. Lots of Amish communities we work with will have a communal phone, computer with internet, or even a large van (that they'll hire someone to drive for them). Maybe they just designated the GPS to be put in their communal van. Doesn't make it much easier to get in touch with them. My typical phone call goes: "Hello, is Amos Stoltzfus there?" "Amos S. or Amos F.?" "Amos S. Stoltzfus." "Hold on.." (15 minutes passes) "This is Amos F. Stoltzfus!" "Dammit..." I often wonder how long I'd last in a lifestyle like that. I think I'd probably make it one night, so I have to give them a bit of respect for keeping it up their entire lives.