Unlocked iphone 3GS Purchased in Australia
I know that in Australia the iphone is officially sold unlocked and it is automatically unlocked for all the Australian service providers.
My question is will the phone also be officially unlocked for service providers outside Australia (so that I can use a local SIM card in other countries). In particular; Sri Lanka, US, UK, India and Dubai?
If it is unofficially unlocked will it get locked again when I update the operating software or if I have in flight mode when I travel between countries and change the SIM card.
Would appreciate any help in this since I don't want to jailbreak.
Thanks
Linusmv
3GS