Glenn Fleishman has an article at the NY Times on WiFi nodes in NYC. Interesting to see how many are encrypted (30% or so), and a map of all of them.
I've seen a mapping of the ones in Chicago but haven't gotten around to walking my iBook around the neighborhood or downtown to see what turns up just yet. Just wanted to download some big sofware updates (20+ MB) and not have to do it over dialup.
