Prepaid iPhone or Droid to work in Europe (Belgium)?

[rgG]

Consider an unlocked BlackBerry. My daughter used her unlocked TMobile BB with a local prepaid SIM card while in Spain last summer. She only used the phone for talk and text though. You might check into how much the BB BIS plan is to use in Europe, if you have it trough TMobile here in the states, or maybe your friend can check into how you could get BB BIS service while in Europe.