A little iPhone joke i found on a forum :)
The bluetooth transfer can only happen between two certified iPhone 3.0 (certification is a 50 dollar fee) in an apple certified room. These “Apple transfer rooms” will be located in major cities. To transfer information, 2 people need to walk in in the apple-certified room, give blood samples to verify that the user is a registered apple owner of the certified apple device. Then they can transfer up to 3kb of information, which cannot be anything but a text file. Needless to say, you can’t transfer without any mobile signal, because the data is simultaneously sent to the cloud to be checked for any apple binaries or any other licensed code in the apple library.