Today is the first experiment with finding a wi-fi hotspot over my lunch hour. Results have been mixed, but nothing to do with the Xoom. The first place I tried did not have wi-fi at all. So I changed my mind about where to eat, but the second place turned out to have problems too. After I had already ordered my food and sat down, I discovered they are having some sort of problem with their wi-fi service and the connection is spotty at best.
I'm sure people who have a lot of laptop experience have been there, done that. I got caught a bit off guard though, which can be chalked up to a learning experience.