My local coffeeshop (which I visit often) has free 802.11b, no keys, no starbucks T-Mobile bullshit, none of that. They already had a computer because they are playing music a la winamp... Free is the only way to go, for less than 100$ you can pick yourself up a cheap ass 802.11b setup, and really if anyones abusing, just walk around and see whos got a goddamned laptop and whats on their screen. This is a coffeeshop we are talking about here, not a S&P 500 corporation... Keep it simple and free, after all it costs next to nothing anyways.