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The BlackBerry PlayBook is a mini tablet computer made by BlackBerry. It was first released for sale on April 19 2011 in Canada and the United States.The PlayBook is the first device to run BlackBerry Tablet OS based on QNX Neutrino and runs apps developed using Adobe AIR. It was later announced that the BlackBerry Tablet OS would be merged with the existing BlackBerry OS to produce a new operating system BlackBerry 10 that would be used universally across BlackBerry’s product line.