Apple Insider - The original iPad offered a 1024x768 resolution (at 132 ppi), leading many to guess that the next version might also get a similar Retina Display. However, a 300+ ppi display covering a 9.7 inch screen would require a fantastically high resolution. It appears Apple will instead simply quadruple the iPad's native resolution as it did when it introduced iPhone 4, resulting in a very high resolution display with a pixel density of around 260 ppi, short of "Retina" status but still higher than most high end smartphones.
Evenly quadrupling the resolution makes it easy for developers to ship apps that take full advantage of both existing and new screen resolutions by simply including two versions of graphic assets, one labeled (by Apple convention) file.png and and a higher resolution version named firstname.lastname@example.org.
In order to handle that massive jump in resolution, iPad 2 would likely need a big boost in processing power, particularly its GPU. Recent rumors have suggested that Apple will address that need with a new version of its custom A4 ARM application processor, possibly named either the A5 as suggested by Engadget or A8, as postulated by a source in Hong Kong.
Boy Genius Reports - Apple just added multitouch gestures for the iPad in the latest iOS 4.3 beta is because the iPad will be losing the home button. Instead of button taps, you will use new multitouch gestures to navigate to the home screen and also to launch the app switcher.
Macnotes - iPad2 will launch on April 2 or 9th, 2011
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