This comes years after varying plans and bidding proposals that didn't work: AT&T is paying for the cost of installing and operating Wi-Fi in 20 parts in the five boroughs of New York City, including the High Line, the park converted from old elevated rail lines, long abandoned. It's a several-year deal, apparently. Right not, three parks (Battery Bosque in Battery Park, part of Joyce Kilmer Park, and the rec center at Thomas Jefferson Park) have service. The rest are coming this summer.
Update: Please read the comments. Parks didn't bid this out or have an open process.
Bryant Park has long had free Wi-Fi, delivered through a series of hands, and it's been an apparent success as part of the terrific revitalization of a public space that was once abandoned to drug deals.
Karl Bode at DSLReports reminds us that last September, Time Warner Cable and Cablevision were planning to install Wi-Fi in 32 parks as part of their cable franchise extension, offering just 10-minute sessions up to three times a month before charging 99¢ a day. It's unclear where these two plans intersect.