International Calling for Free?

How about this for a cool internet find, allfreecalls.net, a company based out of Iowa that lets you make international calls free by using an Iowa number as a gateway. The only charge incurred would be the cost of calling the number, 712-858-8094. There's more info about using it internationally at roam 4 free. Even more info about VOIP type calling can be found here.
You've gotta love how fast technology is moving, everyday it seems like things are getting cheaper, going faster, and doing more. What's next?

Lightyear VoIP