Line2 Allows iPhone Users to Sidestep AT and T – NYTimes.com

IPhone App to Sidestep AT&T

Line2 takes a big step toward a future when cellphone users won’t need to rely on a cellphone carrier’s service.

Link: http://www.nytimes.com/2010/03/25/technology/personaltech/25pogue.html?src=me&ref=general

Line2 also turns the iPhone into a dual-mode phone. That is, it can make and receive calls either using either the AT&T airwaves as usual, or — now this is the best part — over the Internet. Any time you’re in a wireless hot spot, Line2 places its calls over Wi-Fi instead of AT&T’s network.