San Francisco will have net from Google for free

Google announced that they are going to build wifi hotspots throught San Francisco, which will allow those who have wifi adaptor to connect to net. It will cover about 49 square miles, and they are planning to have 30 hotspots on every mile. Speed will be set 300kbit, which is not fastest, but for free? i will take it. Google is not considering possibility that they will make similar project in other cities. (But who knows?)