Behind Your Business

I would not want to have been an AT&T employee at Apple's Worldwide Developers Conference. There were at least three moments when comments by Apple executives betrayed thinly veiled criticism of the phone company, leaving me to wonder about the state of the relationship between Apple and the exclusive U.S. iPhone provider.

Both companies say they're plenty happy with the alliance, and people at Apple familiar with the matter say the speakers didn't intend to poke fun at AT&T. Nevertheless, comments by Scott Forstall and Phil Schiller underscored potential areas of strain.

The first moment came as Forstall laid out features of the new iPhone operating system, iPhone 3.0. Among them is support for Multimedia Messaging Service, or MMS -- the ability to send pictures, videos, contacts, audio recordings, and other content embedded within a phone-to-phone message.

But, Forstall noted, the feature "requires carrier support," meaning it can't work without the cooperation of the wireless service provider. And even though 29 wireless companies in 76 countries will support MMS when iPhone 3.0 launches on June 17, two days before the launch of the new iPhone 3G S, it won't be available in the U.S., through AT&T, until "later this summer," he said before quickly moving on to the next topic. Audience laughter ensued.

Late to the Tethering Game

Another feature the new iPhone is designed to offer is tethering, which lets a wireless phone act like a modem and share its wireless Internet connection with a nearby notebook PC. This handy feature has been available on Palm's Treo, Research In Motion's BlackBerry, and scores of other devices for years. Slides presented by Forstall at the conference showed that while 22 carriers in 42 countries will support tethering on the iPhone right away, AT&T will not. More laughter at AT&T's expense.

Later, after introducing the iPhone's video...