Loopt is a GPS enabled app that helps you find friends, deals, and night life near you. There recent update to version 4.0.1 has brought some new features for Loopt users. They have also Streamlined the app to make it easier to find friends near-by.
A couple of the new features are notifications that inform you when friends or deals are close. They have also added a "ping" feature that lets you send a text with your location to your friends, and when you receive one of these "pings" you have the option to send your location back or ignore it. Your friend's location is shown along with where they like to hang out when they are in the area. If you want to check it out you can scan the code below, and don't forget to see the new features in the video too.