I love simple solutions to common problems.

This year has seen more location-aware applications than we could have imagined.

Sometimes you’re not that concerned about features; you just want to get the job done as fast as possible. Often, after trying out many applications, I’ve settled for the simple and quick ones instead of the complex, slow apps. If you’ve been looking for a very quick way to update Twitter , Facebook , or both, from the iPhone, Duo might be just up your alley.