Today, we released source code for an application to use the new iPhone OS 3.0 peer to peer Game Kit APIs. The app, called "Beam It!", sends contact information wirelessly between iPhones. Just like the original Apple Newton and Palm Pilot, with iPhone OS 3.0 and Beam It!, we've brought back this useful feature.
iPhone developers can get the app and source code, compile it, and install it on any device that has the iPhone 3.0 beta.
For more information see:
Beam It! - Send Contacts Wirelessly To Another iPhone With Game Kit Peer To Peer Networking | ArcTouch
Regards,
Adam @ ArcTouch