When Loopt launched in 2006 it was ahead of a curve that is just starting to be recognized: Location. Now, with services like Foursquare, Gowalla, Brightkite, and even Twitter fueling the location-based services frenzy, Loopt realized that it needed to shift its strategy a bit. Enter Pulse, a new feature launching today.
Previously, Loopt was more of a passive service — you started it up on some device and it kept track of where you were. Other users could see where you were if they opened the ....

