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iPad 3 Codename Found in iOS 5 Confirms Validity of Some Rumors
A new codename finding by 9to5Mac in the latest iOS 5 betas seems to confirm that Digitimes has been accurate about some of their reporting on the upcoming iPad 3.
The "J2" model listed above corresponds to recent report in which Digitimes discusses two prototype models codenamed J1 and J2 that Apple has been working on.
Apple is currently giving two tablet PC projects codenamed J1 and J2 to its upstream partners for development. The sources revealed that the major differences of the new tablet PCs compared to the previous model are their size, specifications and technologies.The report is quite vague but does touch on an issue that has appeared from other sources as well.
Since the new tablet PCs have a higher resolution, Apple has demanded the design of the light source to be changed from a single LED light bar to two LED light bars on the left and right sides of the machine, but since the method of adopting two LED light bars has created difficulty in shrinking the machine's thickness, some vendors have come out with designs that only adopt one light bar, but are packing two LED chips into one package.
The issue of the the higher resolution screen of the iPad 3 requiring a second light bar for the iPad 3 was also reported by Digitimes. iLounge later reported that the new iPad 3 would end up being 0.7mm thicker than the iPad 2 due to this need to incorporate a dual light bar system to support the higher-resolution display.
Apple is widely believed to be working on an iPad 3 with a "Retina" display that may double the iPad's screen resolution. Persistent rumors have suggested that Apple's partners have had difficulties in mass producing such screens.