It looks like SwissCom are rolling out public access WiFi across Switzerland later this year. I wonder what kind of security they'll be using to prevent freeloaders.

Dialling in is simple, secure and fast. Swisscom Mobile customers merely enter their NATEL (cellular phone) number and receive an SMS with a password for accessing the Internet or their company network via public wireless LAN. In this case the cost is charged directly to their NATEL bill so all mobile services are clearly itemised on a single invoice. Customers with other providers or visitors from abroad can buy value cards at the hotspot, from Swisscom shops, kiosks or other points of sale.