Facebook is making some significant changes to its Nearby Friends feature that lets you see where pals are, Techcrunch has noticed. Most significantly, it has eliminated the precise tracking feature that tells you exactly where friends are by pinpointing them on a map. Now, you can only see them in a list along with an approximate distance away. While the original feature made it easy to check someone's progress or tell you when they arrive, for instance, it's also a bit of a privacy nightmare if you forget to turn it off.
Source: Techcrunch