Open Park is a great idea, and Kevin Werbach is part of it:
WERBLOG: The Open Park Project is a non-profit working to establish free public WiFi connectivity on the National mall in Washington, DC. I'm one of the co-founders, along with Washington telecom lawyer Greg Staple and two others. On [April 28], Open Park launched its Website and its first location, on Capitol Hill.
Hard to believe, but this is the first public outdoor WiFi hotspot in Washington, DC. The area around Supreme Court, the Capitol Visitor Center, and the Library of Congress is now “lit.” Next stop: a wireless mesh from the Capitol to the Lincoln Memorial.