The battle for market share is on between Verizon Wireless and AT&T. In just one month, Verizon took 12.7 percent of the iPhone market, according to ad tracking firm Chitika.

That shows Verizon probably sold a lot of phones in its first month working with Apple and that AT&T is going to have to offer better services to users to hang on to them.

Chitika can measure the number of AT&T and Verizon devices registering on its network. Just one day after the device launched to Verizon customers on Feb. 10, Verizon iPhones accounted for 3 percent of the U.S. iPhone base.

Apple also debuted the second-generation iPad with Verizon as well as AT&T last Friday. While AT&T and Verizon slug it out, Apple is sitting pretty and could very well be gaining market share on Android.


VB's research team is studying mobile user acquisition... Chime in here, and we’ll share the results.