"World Data Option Month" by Swisscom

[NoGSMarea]

Originally Posted by AndreA

Not a so great problem since foreigner customers can have Swisscom postpaid contracts

I will stay in Switzerland on business for a few weeks and I am very much interested in "Natel Data Time". It sounds really attractive for me. (With Japanese SIM's I would have to pay for the mobile packet communications much more than airticket.)
While AndreA said "not so great a problem", is it really possible for a foreign people to have a subscription contract with Swisssom? (with some deposit etc.?)
Of course the duration of my stay is less than three months and probably I can not given any kind of residence permit.