On a trip to Europe a little while back, I used an unlocked GSM phone with a prepaid SIM card. This is a very convenient system when traveling abroad if you want to bring your cell phone, but avoid international roaming charges. You can order a SIM online, and you can recharge your balance either by phone or online. Worked great everywhere I went. Here is a link to the one I used: from http://www.onesimcard.com