People are surfing the Web on handheld devices.

According to a study released by the Pew Internet & American Life Project on Sunday, one in four Internet users said they owned a cell phone that could access the Internet. Of those, more than half (54%) said they've used the phone to get online. About 13% of people also said they had a PDA that could reach the Internet, and again more than half (56%) have done so.

The study focused on wireless in general, finding that 34% of people in the U.S. have used wireless networks of some kind (laptop or cell phone), a jump of almost 12 points since February 2004. Significantly, most of them have done it away from a permanent WiFi network in the home or office.

Survey: Wireless surfing on the rise (AP via CNN)