3G PDA is a quick and interesting story. Jim has been dating Brit for a while, and she's the first girl he really feels intimate with - a really close bond. He gives her a 3G phone with GPS capabilities for her birthday, and then quickly things seem to fall apart in his world.
It's a cheating partners story, that seems pretty straightforward and has a really good, enjoyable flow to it. What really makes this story nice though is the second chapter which gives some more resolution to the tale and sets it apart from a lot of the stories in the genre.
A really great read.