Pac - you are really just a basher here but I have similar doubts. Sure, I think people would like to use open air wireless or when they are in the car, but are they going to pay $30-50 a month for high speed at home and then another $30 a month to be able to roam, especially when they can go to Starbucks and get it for free? Now, maybe you can convince some businesses with a roving workforce to install CPE devices at headquarters and then use the service. But in terms of retail seems like they need to convince Cox or other companies to allow people to get MOBL's wifi as an add-on for maybe a few extra bucks a month.
Also, there is a scale problem here. I mean, are they really going to drop cable or DSL they already have and then spend $70 on a CPE device just so they can have connectivity in Tempe? Now maybe if it was region-wide it would be more compelling.
Having said all that, there are a lot of companies who seem to think this is going to be profitable. So maybe they know more than the pac-man.