The first run of Apple's latest product, the iPad, has already sold out this weekend and customers who pre-order now will have to wait an extra nine days after the official US launch to get their hands on it.
US customers have been able to order the iPad for two weeks now, and either collect it from the store April 3, or have it delivered. On Saturday, Apple set April 12 as the next date for people to get the iPad.
Hundreds of Apple fans are expected to camp outside the company's shops waiting to get their own copy of the touch screen tablet computer.
Industry observers believe the iPad could well outsell the Apple's iPhone, launched in 2007, of which 1 million had been sold after 74 days on shop shelves.
Prices in the US start at $499. The most advanced model costs $829.