I've installed and tried Boingo with poor results so far:

-in one allegedly Boingo-friendly location, DFW airport, I could not connect despite repeated tries. My user info was rejected (I did verify what I entered was correct).

-supposedly Boingo works with T-Mobile hotspots, which are in Starbucks, but the brand-new Starbucks by me has no wifi hotspot to test. grr.

I will keep trying...