Adam Werbach, a wireless policy wonk who I pay attention to, has an editorial arguing for more municipalities to provide cheap wireless broadband to their citizens to drive competition in the broadband market. Even the current off-the-shelf wireless networking hardware could deliver speeds much higher than current cable or DSL modems. This will stay true until someone decides to throw a bomb in to the broadband market, because currently the phone and cable companies have little incentive to innovate.
Also, Matthew Yglesias has written about the policy problems in the US - problems that we Canadians face to an even greater degree.
Finally, there's this piece in Foreign Affairs talking about the sad state of American broadband.