Having a network-locked iPhone can be a major nuisance if you want to use a different SIM when travelling overseas. Optus (which dominates the Australian iPhone market) appears to be eliminating that hassle by automatically unlocking iPhones connected to its network.
Brett Winterford at iTnews reports that customers have begun receiving text messages informing them that their phones have been unlocked. Completing the process requires phones to be synced with a computer via iTunes.
Optus' move follows Telstra changing its policies October and unlocking iPhones connected to its network without imposing a charge. However, that still requires Telstra customers to initiate the process.