[AnthonyMouse]

> What if we had a killer phone-over-wifi app, to allow this segment of the market to take off?

It's called VoIP. The carriers do everything they can to kill it (to keep you buying cellular service for voice), but it's not like the technology doesn't exist.

[cinquemb]

Yeah, the technology has been around for a while, but there were a lot of limiting factors (there may still be) for pulling somethings off that might be worth revisiting now.

Meta: My dad works on VoIP systems for BT and I was telling him he'll probably be on the front lines in a couple of years when mesh-networking (well he calls it a buzz word for peer-networking) takes off and efficient packet routing on decentralized nodes that could come on/go offline at anytime.