It's extraordinarily cheap, especially for an "unlimited" plan. For comparison: Republic Wireless uses Sprint's network, and Sprint's "unlimited" plan costs $99/month. (In theory, Republic gets away with this by using wifi rather than the cell network whenever possible. We'll see if it works.)

It's cheap for unlimited talk, but it's not that great for data. It sounds like they are assuming most people will be using the phone in range of wifi. So if you compare it to plans with unlimited data, it's not incredible. I'm paying $25 a month (though they are charging $35 to new customers) to virgin mobile for unlimited data and 300 anytime minutes. The phone is a little overpriced too. Lg optimus phones are going for around 130 right now.

Though the technology sounds interesting if it works. I don't know of any way that I could seamlessly change from wifi to cellular service with virgin mobile while making a call.

It's several things but to your question on average people pay upwards of 50 dollars for phone service this is significantly cheaper.

Their phones use WiFi where available and, as I understand it, offer unlimited calls, texts and data - which is apparently a good deal for $19/month.