I know it might be illegal, but I'm cracking those wherever I go and need internet. I keep telling people about this, but they don't seem to care much (oh I'm sure they will, when problems are going to start arising with new internet limitations).
Here's the link that will help you
http://lifehacker.com/5305094/how-to...with-backtrack
I'm thinking of getting an android application for cracking WEP. More mobility and "personal" spots around the country :P