WANdering with Wi-Fi
The kind of Wi-Fi to WAN roaming described in this Infoworld article might be a good reason to upgrade to a new wireless service. In any event, it has that always-on cool factor. I guess it really depends on the real throughput (i.e. will you notice a dramatic difference between Wi-Fi and WAN) and the cost. If it isn't that much more than a cell plan, you could see this kind of thing working. But, I'm sticking to my original story on this: make my phone work, then ask me for more money.