"There isn't a device that's easier to use," AT&T Mobility president and CEO Ralph de la Vega said during his keynote at the Mobile World Congress, according to a report in FierceMobileContent. He also called the Apple device "a game-changer," saying that data consumption on AT&T's wireless networks has increased significantly since the iPhone's launch in June.

De la Vega told the audience that 95% of iPhone users surf the Web via mobile on a regular basis, something that 30% of them had never done before, FierceMobileContent says.

The article cited some other statistics from de la Vega as well:

-51% of iPhone owners have used the device to watch videos on YouTube.
-9 out of 10 like the iPhone better than their previous cell phone.
-13% of AT&T customers have a 3G device.
-12% own integrated devices.
-ARPU for customers with a 3G device is 20% higher than for customers with a 2G device; for customers with an integrated device, it's 120% higher.