For all those find who find following their exes friends too time consuming, there’s good news. More than half of American phones can do the work for you.

GPS embedded technology makes it possible to know the exact location of contacts who also use have GPS embedded phones. The services are most popular with college kids, but Helio offers a program that lets small-business owners track the whereabouts of their employees.

Four years ago, no one would have predicted that posting private pictures online would be so widely enjoyed. Undoubtedly, eventually this technology will be both ubiquitous and well-liked. So while we can still say it, we will: this is creepy.