While this would be great having it fully supported by the network, it still comes down to getting people you know to et this app as well and/or the app on their PC. The article says they're offering skype-to-skype, which leads me to believe it's only unlimited through the software, not actual "phone" calls.
Either way, it really doesn't help me much as I don't know anyone who uses skype. I wish Verizon would just give us AnyMobile like Sprint. Then I would be happy.