Many airports have WiFi, but that doesn't mean it's good WiFi -- just ask anyone who's tried to stream video or upload photos during a layover. However, Boingo thinks it can help. It's launching a tiered system that includes both a free basic tier and a speedier paid tier. The company is hyperbolic when it claims that the 20Mbps offering is "blazing-fast," but it's good enough that you could get some serious work done (or goof off like at home) before your boarding call. And of course, the free tier is a big deal as well -- gone are the days of Boingo-only terminals where you have to fork over a credit card just to check your email.