Just wanted to say thanks in advance for the help! My sister is moving to Melbourne, Australia at the beginning of the year and right now she is on contract with AT&T and they won't unlock her iPhone 4 and neither will apple. What is the best option for her to get an iPhone there and what is the best cell provider? Should she get on a contract or do prepaid? She had a friend suggest https://onlineshop.telstra.com.au/ and just do the 24 month contract, but wanted someone who is from Australia to give me their opinion. Would it make sense for her to buy an unlocked iPhone here in the USA and just take it to Australia? They will be living in AU for 2-3 years. Thanks!