I am excited that Portland, OR will be getting free wireless access starting with a few test areas downtown this summer and citywide access in one to two years. This project has been in the works for a while, and the contract was awarded to MetroFi yesterday.
Since this is an open source blog, I did some digging and found out that they use open source squid proxy server systems, Linux, PHP, and other open source technologies. They are also hiring.
Thanks to Todd for sending me the link!