iPhone OS and Android are taking over mobile phone data traffic

According to AdMob's data, smartphone traffic grew 193 percent over the last 12 months, accounting for half the traffic on its network. Feature phones-what most of us think of as a "regular cell phone"-increased traffic 31 percent in the same time frame, but dropped down from 58 to 35 percent of traffic overall.

Traffic from mobile Internet devices, including handheld game consoles, e-readers, and other similar Internet-capable devices, grew a whopping 403 percent, and now accounts for 17 percent of the traffic overall.

See above chart for a comparsion.

source: arstechnica