One Click Contact Exchange App.
Hello - we just released the first contact exchange app to work across iPhone and BlackBerry. It's called Dub (www.dubmenow.com) and is available in the AppStore.
Dub allows you to exchange contact info with another iphone or balckberry user with the push of a button. The contact info saves directly to your mobile address book and updates automatically any time a contact updates their info.
Please take a look and let me know what you think.