Apple has exhausted the supply of iPads scheduled to be delivered to US customers on Saturday, according to the company's online store.
The US Apple store says that pre-ordered iPads might not ship until April 12, more than a week after the iPad is due to go on sale. Only those who placed orders before March 27 can still expect to receive their iPads on April 3, Apple said.
The Mac maker began taking iPad pre-orders on March 12. At the time, it promised to ship pre-ordered iPads so that they would arrive April 3.
UK customers already have to wait a bit longer before getting their hands on the iPad. The tablet was originally expected to launch in the UK at the start of April, but Apple's online store confirmed earlier this month that it won't ship here until the end of next month.