Two iPhone features introduced in iPhone OS 3.0 are still awaiting activation by AT&T: Multimedia Messaging Service (MMS) and tethering. Rumors suggesting that AT&T will surcharge its users $55 to activate the tethering capability are wrong, according to AT&T.
Tethering will enable iPhone users to connect their Mac or PC to the Internet using AT&T's data network instead of Wi-Fi. It's a useful feature for business travelers or others who need access away from a faster network. The feature was unveiled during the introduction of iPhone OS 3.0 earlier this year.
