File-Sharing Pioneer Turns to Free Internet Calling

First he took on the record companies, now Niklas Zennstrom wants to take on the phone companies.Zennstrom's Skype Technologies is rather efficient compared to a phone company:

With no networks, lines and poles to maintain, London-based Skype operates with 171 employees worldwide yet has nearly as many users as Verizon has residential phone customers. Verizon's land-line division employs 142,000 people.

Washington Post