Accessing the Internet from NYC Subways

My spin:Accessing the ‘net from inside of a NYC subway car is not currently possible…until yesterday.
News Clip: NY Times: As a saxophone’s melancholy music bounced off the tile walls of the subway station at Union Square in Manhattan last Thursday afternoon, Yury Gitman was hunched over a laptop computer, trying a different kind of performance.
A thin stream of wireless Internet bandwidth was trickling down the stairs to the downtown platform of the N,R,Q and W lines, two levels below the street, and Mr. Gitman was trying to get the tenuous link to send what he said would be the first e-mail message from this deep in the New York City subway system.
(full story)