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We already reported about the possible inception of iPad’s second generation. We also heard a lot of speculations and rumors regarding the Retina Display of the gadget. iPad 2 is expected to be released on the end of March and April.

MacRumors found new graphics in iBooks application that are in need of higher resolution suggesting that iPad 2 may come with a display with twice the resolution of the first iPad. Thus, iPad 2 will have 048×1536 screen resolution at 260 DPI compared to current iPad’s 1024×768 screen resolution at 132 DPI.

MacRumors released a statement saying that, “Based on Apple’s marketing efforts for the original “Retina” display, it would suggest a DPI (dots per inch) greater than 300 to exceed the abilities of the human eye. A more practical approach would simply be doubling the resolution of the current iPad (1024×768) to 2048×1536 at a 260 DPI. While not quite a “Retina” display, it would follow with Apple’s efforts to avoid fragmenting their product line. From a developer’s perspective, the doubling of an existing resolution is much easier to support. Apple similarly doubled the iPhone’s resolution from 480×320 to 960×640 when they introduced the iPhone 4. Like on the iPhone 4, older apps can simply run pixel-doubled while native apps will take advantage of the full resolution of the new screens.”

MacRumor also adds that, “The “Retina” definition is based on a specific distance the device is being held from your eye. Since an iPad display would likely be held farther from your face, it would require a lower DPI to achieve the same effect.” This could also be the reason why Apple is planning to use the next generation GPU in future iOS devices and Cortex A9-based multicore processor.