Apple's first tablet computer was the Newton MessagePad 100, introduced in 1993, which led to the creation of the ARM6 processor core with Acorn Computers. Apple also developed a prototype PowerBook Duo-based tablet, the PenLite, but did not sell it to avoid hurting MessagePad sales. Apple released several more Newton-based PDAs, and discontinued the last, the MessagePad 2100, in 1998.
Apple re-entered the mobile-computing market in 2007 with the iPhone. Smaller than the iPad but featuring a camera and mobile phone, it pioneered the multitouch interface of iPhone OS. By late 2009, the iPad's release had been rumored for several months. Mostly referred to as "Apple's tablet", iTablet and iSlate were among speculated names. The iPad was announced on January 27, 2010 by Steve Jobs at an Apple press conference at the Yerba Buena Center for the Arts in San Francisco.
Three days later, at the 52nd Grammy Awards, Stephen Colbert used an iPad in announcing the nominees.
Apple began taking pre-orders for the iPad from U.S. customers on March 12, 2010. The Wi-Fi version of the iPad went on sale in the United States on April 3, 2010, at 9:00 am local time, with hundreds of customers lined up outside stores nationwide. The Wi-Fi + 3G version was released on April 30.3G service in the United States is provided by AT&T and sold with two prepaid contract-free data plan options: one for unlimited data and the other for 250 MB per month at half the price.The plans are activated on the iPad itself and can be canceled at any time.
The iPad will also be available in Australia, Canada, France, Germany, Italy, Japan, Spain, Switzerland and the UK at the end of May 2010. Apple stated they will announce international pricing and begin taking online pre-orders for iPad on May 10. Israel recently authorized importation of the iPad, after a brief prohibition related to possible Wi-Fi interference with other devices.
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