A new MVNO (virtual network operator) using the Sunrise network is now offering free SIM cards. You can order it on-line, and then e-mail or upload a copy of your passport/ausweis in order for them to activate it (Swiss law). Just be aware the SIM card has no time/money on it, so you'll need to buy a (minimum) 10 CHF credit so you can make calls (can top-up on-line or at a Kiosk or Avec).
http://www.vectonemobile.ch/free-sim...m.aspx?lang=en
Their big "1 Rp per minute" promotion is till the end of the month, and is only for some countries. Also note that there is like a 20Rp connection set-up fee for some calls. So read the fine-print, and don't be sucked into the big, magical "1Rp per minute" poster
...anyway, not a bad deal, you do get something for nothing...sort of. They're banking on you topping it up with 10CHF in order to use it