When travelling abroad is it better to use the Verizon SIM card which comes with the Droid 2 Global, or should I use a SIM card from a carrier in the country I am travelling to (Britain in my case)? I understand that Verizon will give me an unlock code so I can use another SIM card, but then I would not have my American number. However, I can see where it would be much cheaper to use the SIM card of a carrier in the country where I am travelling. Do you have any experience or ideas you can share on this? Thanks.