If you’re interested in learning more about WiFi and cell phone technologies that might work on Dewees, here are some good background articles…
WiMax is a longer-range WiFi technology. From the articles listed below, it sounds like WiMax is still a ways off, but may be gaining traction. There are also several competing technologies, such as LTE.
http://www.govtech.com/gt/241661?topic=117699
http://en.wikipedia.org/wiki/WiMAX
http://news.cnet.com/8301-10784_3-9925958-7.html?tag=blog.1
http://news.cnet.com/8301-10784_3-9972229-7.html?tag=blog.2
Femtocells are small scale cellular phone networks. Some companies are trying to put them on computer chips. Just image a cellphone tower inside your laptop. Very cool. Here’s some background material on Femtocells…
http://en.wikipedia.org/wiki/Femtocell
http://www.networkworld.com/news/2008/010808-femtocell.html
A google search on “WiMax” or “Femtocell” will turn up lots of additional information.