New Tools Update: Yelp for iPhone Has Hidden Augmented Reality Feature

I just saw that Yelp, one of my favorite apps for the iPhone, is now testing an augmented reality feature. Yelp, for those of you that haven't used it before, uses your location to find user-reviewed restaurants, bars, etc. close by. It's really good, and AR makes it that much better. As a foodie, this alone makes it almost worth the upgrade to a 3GS. Anyone want a nice used 3G? 

On another note, FastCompany's top story today is about three unexpected dangers of augmented reality. Spoiler - you might get your fancy phone stolen if you're holding it up in front of your face all the time. Oh noes!