After Netshare was pulled for the second time from the App Store, there was a glimmer of hope it might return after the developer finally got in touch with Apple. Enter AT&T and their terms of service: "Plans (unless specifically designated for tethering usage) cannot be used for any applications that tether the device...to Personal Computers (including without limitation, laptops), or other equipment for any purpose." There is no tethering plan for the iPhone. But it's not that simple, either.