Apple has announced that it has sold one million iPads within a month of the tablet computing device's launch.
In that time, iPad users have downloaded more than 12 million apps from the App Store and over 1.5 million e-books from the iBookstore, according to Apple.
"One million iPads in 28 days-that's less than half of the 74 days it took to achieve this milestone with iPhone," said Steve Jobs, Apple's chief executive.
"Demand continues to exceed supply and we are working hard to get this magical product into the hands of even more customers," he said.
Apple announced in April that the international release of the iPad would be delayed by a month because of the higher-than-expected demand in the US.
The iPad was initially scheduled to go on sale in the UK and elsewhere before the end of April, but Apple will now start taking pre-orders from 10 May.
Despite the high demand in the US, some users have complained about the poor video performance of the 3G version of the iPad, which uses the AT&T network.
Users said video quality over 3G is reduced from high-definition to a lower resolution and that the ABC Player does not work unless connected to Wi-Fi, according to US reports.