Love venting your E-Train frustrations with Boingo and Google Offers' free WiFi? While the Manhattan program ends on September 7th, the partnership has swelled its coverage to include a further 24 locations across the nation. From today, eight malls will offer WiFi in cities like LA, SF and Seattle -- while Airport hoppers will be able to get a 50 percent discount on 24-hour access at 16 airports including JFK, O'Hare and Midway,