guys i need a little help here too.
my friend from aus (sydney) got two 16gb iphone 3g for me today.
it seems that its a locked unit but he was able to use the iphone with his optus sim card without the turbo sim. but when he tried his friends sim card from another operator it cannot be used. does it mean its locked to optus ?
hes coming back to malaysia this saturday so all he has to do is bring the phone to optus and ask them to unlock it for $80 ?
how long would it take for the unlocking process and will he have any problems getting optus to unlock it because he bought it from another phone shop ?

sry bro. tat i dunno. unless ur friend ever make at least a call in optus using the iphone. else the phone most probably will be locked.

I had search some info bout my question. Got 1 guy from indon got the iphone from aussie and unlocked after a few days in his country. Hence, i believe it can be unlocked while the iphone has been made a call in aussie, the telco will trace the imei and register.

Here's the glitch or should say procedure.
1. Optus prepaid iphone 3g--topup AUD80 for fully unlocked else is only sim unlocked like US AT&T.

2. Make atleast a call in order for the telco to register imei serve under unlocked.

3. Wait for 5-10 days for it to be unlocked, Optus will give u a call or sms. It is possible to be unlocked in other countries just if the iphone ever made a call in aussie.

Optus offer unlocked iphone too. Postpaid plan. It is officially unlocked from the box.