I just talked with a start-up called Rebtel which, per VoIP gury Jeff Pulver, could prove to be the next Skype. Rebtel, whose service is still in Beta, allows mobile phone users to make international and long-distance calls using their local wireless minutes for $1 a week.
I trialed the service this morning. The way it works is, you sign up on Rebtel's Web site. Then, to call a friend, you dial a local number (a Portland, Ore., number, in my case) but it rings, say, in Sweden. There are certain inconveniences involved, though: In order for you to not pay long distance fees, your Swedish friend has to pick up, then hang up and redial a local number to finally connect with you. (Doing that on a cell phone is easy, you just redial the number that called you last.)
Have you trialed this service? How do you like it? Do you like it better than other mobile VoIP offerings out there? I would greatly appreciate your input. Thanks!