Apple has broken its silence on the pre-order issues that have dogged the iPhone 4 launch, confirming that the smartphone sold out within 24 hours.
The company and its carrier partners took pre-orders for more than 600,000 iPhone 4 devices yesterday, according to a statement.
"It was the largest number of pre-orders Apple has ever taken in a single day, and was far higher than we anticipated, resulting in many order and approval system malfunctions," Apple said.
"Many customers were turned away or abandoned the process in frustration. We apologise to everyone who encountered difficulties, and hope they will try again or visit an Apple or carrier store once the iPhone 4 is in stock."
However, Apple did not say why networks in the UK have not put the iPhone up for pre-order.
Earlier today, Orange became the third network to confirm prices for the iPhone 4. The operator will charge £75 a month for 24 months to get the 16GB model for free.
Apple has also revealed on its UK iPhone 4 web site that the shipping date for the iPhone 4 has now been pushed back to 2 July.
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