No

90% of the places I would take my eDGe have wifi. If they don't I have plenty of content on the device. If I forget something I can easily find wifi within a mile of where I am pretty much anywhere and get what I need. There are so many places with wifi. Find any coffee shop and you can get it. Heck even McDonalds in the US has wifi and that is going to be free soon. So put me in the no column.

With the iPad I can see certain instances where it would be nice but my iPhone or any other SmartPhone can fill that gap.

Allow tethering and well you have solved the problem.