Officially Unlocked by Apple, Permanently (No Software Hack & No Turbo SIM) - you can upgrade it to the latest firmware (version 2.2.1 at the moment) and it will not lock back.

The phone which was unlocked with a software hack or a Turbo SIM cannot be updated

The phone is Australian stock with 1 Year Apple AU warranty.

Introducing iPhone 3G. With fast 3G wireless technology, GPS mapping, support for enterprise features like Microsoft Exchange and the new App Store, iPhone 3G puts even more features at your fingertips. And like the original iPhone, it combines three products in one a revolutionary phone, a widescreen iPod and a breakthrough Internet device with rich HTML email and a desktop-class web browser. iPhone 3G. It redefines what a mobile phone can do again.   Note:  Phone is shipped from Melbourne. Phone is Australian stock with 1 Year Apple AU warranty.  Phone is OFFICIALLY UNLOCKED (Yes, NO Crack, Jail Break, etc).  You can update the firmware anytime.   Package Inclusions: Apple iPhone 3G 16gb OFFICIAL UNLOCK Stereo headset with mic USB power adapter Dock Connector to USB cable Documentation Cleaning/polishing cloth