Best free AR app

Youre not gonna get an app thats better than gps units for free, as a free app this is totally cool and fun. Great for showing off. Not sure if Id bother downloading it on anything other than a 3gs. Keep the AR apps coming!
Update suggestions: dragging the pin is a hassle, would be nice if I could just double-tap to mark a location or select adresses from my contacts.

Ghcjcihsgshxhjwhshx about Heads Up Navigator: 3D Augmented Reality Navigation