The really important thing is is that the phone is $25/mo. as the full usage fee. That's less than half the price of what I'm paying right now on Verizon, and less than a third of what people can pay for the iPhone. I'm considering downgrading to this device right now just because its price is so low.
How much would you pay for a MiFi style device + plan on that network? I read about one US citizen who was going to have to spend so much, he got a Galaxy Tab for the same price which could perform the same function, plus much more.
They're apparently pretty well locked down, device-wise. So presently you can choose either a crappy Samsung Android device or this reasonable competent device.