Apple has revealed the iPhone 5 is on course to become the biggest selling gadget in the firm’s history after it revealed two million pre-orders were placed in just 24 hours on Friday.u00a0Many found the initial batch of pre-orders sold out in just an hour, with Apple admitting it had to push back delivery dates for many users.

Going gaga: Customers line up outside the Apple store on 5th Avenue, New York awaiting the arrival of the new iPhone 5. The phone has become the fastest selling gadget breaking all previous sales records. Pic/AFP