Make sure you're tracking all of fall's coolest new shows; check out our Fall TV Preview now for suggestions!

The latest in technology video from David Pogue for The New York Times and CNBC.

"Line2 for iPhone"

March 26, 2010
David Pogue tests Line2, an iPhone application that allows users to set up a second phone line, which can make calls over the AT&T network or over the Internet.