Australian operators have sold out the Apple iPhone 4, which was launched on 30 July. Apple is estimating a three-week delay for new orders on its website, but some operators expect new stock to arrive ‘over the coming days’, the Sydney Morning Herald reports. Australian operators received around 12,000 to 13,000 units in the first batch, the paper writes citing an unnamed source. Optus and Telstra said they will be receiving new shipments in a few days.