Jon Johansen (DVD Jon) has posted a method that allows users to take a new iPhone and activate it without connecting to AT&T servers or supplying any personal information.
The method allows users take an iPhone and activate it to allow iPod and Wifi functionality, but without signing up for mobile telephone service with AT&T.
This has also be accomplished by cancelling the AT&T service in the first few days after activation.
Source:? Mac Rumors
Jon Johansen, DVD Jon, iPhone, iPhone Activation, AT&T