Wouldn't it be nice if this technology was used to make a free citywide wireless internet? We just need a bunch of people with this ambition and it could be done. I once read a book, called When A Strange Comes To Town, in which some people had the same ambition. You can get the book from Project Gutenberg if you look around. It's a newer book that has never been copyrighted.

This is probably a garbled memory of Cory Doctorow's Someone Comes to Town, Someone Leaves Town. It is copyrighted, but you can indeed download it from Cory's website; it was released under a Creative Commons license.

(I liked it.)