Loopt is a free iPhone 3g “location-based” social networking download which integrates with Facebook and Twitter. The application allows friends to know where you are and what you’re doing. Loopt CEO Sam Altman says, “We show you where people are, what they’re doing, and what cool places are around you.” Rest assure, Loopt allows the user to customize features and not be stalked without warrant! Here’s a handy link to the download page. If you try Loopt, please leave a comment and let us know how you like it.

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