There is only one SIM in the D3. Last New Year's, we bought a pre-paid T-MobileUK SIM when we got to Greenwich (SE of London) and used that for data. I think it was a 1-month for 500MB, but we were only there for just over a week so that was fine for Google Maps and Navigation.
It was a small cell phone store called fonehouse. We had trouble getting the plan working. I think it was that we needed a local (to the country) credit card to register or send a SMS to register and we had to go back. He fixed us right up and we had full maps and internet everywhere we went on vacation around London.
Just be sure to contact Verizon to get the unlock code for your DROID³ before you travel. If at all possible, borrow someone else's SIM (T-Mobile or AT&T) which will allow you to enter the unlock code. You won't actually be able to use the T-Mobile or AT&T USA network, but you will be able to tell if the unlock code worked. I used my old T-Mobile SIM that sat idle ever since I switched to Verizon on Nov 6, 2009.
Hope this helps.
It was a small cell phone store called fonehouse. We had trouble getting the plan working. I think it was that we needed a local (to the country) credit card to register or send a SMS to register and we had to go back. He fixed us right up and we had full maps and internet everywhere we went on vacation around London.
Just be sure to contact Verizon to get the unlock code for your DROID³ before you travel. If at all possible, borrow someone else's SIM (T-Mobile or AT&T) which will allow you to enter the unlock code. You won't actually be able to use the T-Mobile or AT&T USA network, but you will be able to tell if the unlock code worked. I used my old T-Mobile SIM that sat idle ever since I switched to Verizon on Nov 6, 2009.
Hope this helps.