NoCatAuth … moving in the right direction!
This is a very good article about a very cool project! This is the beginning of the infrastructure required for a good global wireless network. It is a authentication system for wireless users which provides a good web-based authentication scheme, along with bandwidth throttling and other features.

My team and I are about to install and experiment with a copy of this stuff for our upcoming 802.11 project …

http://www.oreillynet.com/pub/a/wireless/2001/11/09/nocatauth.html