There could be a wireless pay machine. You put in a quarter and it's spits out a number that lets you connect to it's wi-fi point, for say 5 minutes.
For those people that needs a quick connection to check email, or get a map.
Even better would be wi-max points run and maintained by the local government. Not having easy access/free wi-fi on a major city is quickly going to be like not have paved roads in a major city.