The Best Camera... is the one you have with you!

Although Chase Jarvis is a professional photographer he likes taking pictures with his iPhone an share them with others. It's not the techstuff, it's the story that counts. So, this is not really a location-based thing but it still is about sharing interesting locations through pictures.
You can only love this guy's enthousiasm.

The worldwide hub for mobile photography

ChannelFlip story on location-based gaming

Totally Geek: find the journalist with a fake identity

In 2009, Wired magazine writer Evan Ratliff decided to disappear. For one month, he left behind his identity, home, and friends, setting out to develop an entirely new life somewhere in America. Wired challenged anyone to find him – for a $5000 prize – prompting thousands of people to dig into his life and track his location. What happened next may change the way you think about privacy, social media, interactive journalism and identity in the digital age.

picnicnetwork.org

MauerGuide

Much of the infamous Berlin Wall has been torn down, but visitors who want to find its original path can use a hand-held GPS Wall Guide

MauerGuide