(Cross posted from tshwi)
Thanks to Dan Saffer for the link from the Read Write Web!
Here is my partial "reblog":
"Social review service Yelp has snuck the first Augmented Reality (AR) iPhone app specifically for the US into the iTunes App Store. The undisclosed new feature allows iPhone 3Gs owners to shake their phones three times to turn on a view called "the Monocle." This view uses the phone's GPS and compass to display markers for restaurants, bars and other nearby businesses on top of the camera's view...Blogger Robert Scoble discovered the hidden feature and posted about it on FriendFeed today. "
Video (in French, but easy to understand by the demonstration)
"Both GPS and a compass are used to determine location and direction being pointed at."
I want an iPhone. Verizon, can you hear me now?!