Bless my techie (yet security-naive, or security-indifferent) neighbor whose wireless internet drifts into my apartment from one of the hundreds of windows visible from my apartment in lower Manhattan. They save me the need to turn on my modem for the occasional home email check or weblog post. It's a tenuous connection so I can't download anything bigger than a web page, but it's still far more convinient than dialup.
These "serendipitous" connections are oh so common in Manhattan now. They were also all over in Boston (often a more tech-saavy city in general.) Just another advantage of living in urban population center.
