It Works; Needs to be Improved for 3GS

We tried it out. It does indeed work when you are moving so it can tell which way its pointing. But it updates the direction very slowly as you walk so if you are making turns in close order you may not be sure which way to go.

That may be the best they can do with pre-3GS iPhones but for 3GS phones they could, and should, take their directions from the built-in compas so they can update the direction much faster. If they do that Ill probably give it five stars.

travlin hoosier about Beacon