Story source: iPhone gets VoIP and chat options thanks to Fring
This is precisely the type of functionality that I predicted the first time the iPhone was revealed by Steve Jobs. The ability to use VoIP to make free phone calls over Wifi.
Don't worry, this is not Armageddon for telecommunications company. Armageddon will come when you don't have to hack your iPhone to get VoIP.
It will come in the form of the web browser.
Be afraid. Be very afraid.