Worldwide GSM cards in the mountains?
Yo! I am tired of collecting local SIM cards and wanted to buy a single worldwide number (like http://www.cellularabroad.com/) before the next trip. Does anybody here use such a service? I am curious how well it works at the main jumping destinations in Europe, especially what coverage it gets in the mountains.
If you don't know what i'm talking about, it's a SIM card that roams cheaply and usually has free incoming calls in most civilized countries

bsbd!
Yuri.