The Asahi Soft Drinks company installs and stocks thousands of vending machines across Japan. It has decided that in future new vending machines will come pre-installed with the kit necessary to act as a Wi-Fi hotspot. In so doing, anyone within 50 meters of a machine will be able to connect for free and surf the web. The only limit seems to be an auto cut-off after 30 minutes, but you can just re-connect if you need to.