http://www.case-mate.com/iPhone-3G-Cases/Case-Mate-iPhone-3G--3GS-recession-case.asp http://mobile-augmented-reality.blogspot.com/2010/02/marker-tracking-on-iphone-3g-sdk-312.html http://www.augmentedplanet.com/2010/05/iphone-augmented-reality-marker-tracking/
augmented reality for iPhone