Paper about entrepreneurs and Wireless Internet Café, in the NYT, it's difficult to make profit...

At cafes, malls and downtown business districts, there has been an explosion of Internet access points, or Wi-Fi hot spots, that let computer users log on to the Internet for free. That growth is a fundamental reason - though not the only one - that technology start-ups, investors and industry analysts who had high hopes for Wi-Fi are scrambling to find sustainable business models.