Skype App Updated to Allow Voice Calls Over 3G
The Skype app for iPhone [App Store] has been updated to allow voice calls to be made over 3G data networks. Skype is a popular VOIP (voice over IP) application that allows users to make phone calls from their computer or mobile phone over a network...
http://www.macrumors.com/2010/05/30/skype-app-updated-to-allow-voice-calls-over-3g/