RIM unveiled its new PlayBook in San Francisco Monday to mixed reviews and several unanswered questions. It became clear, however, that the device shown off at the DevCon keynote proved many of the rumors about RIM's tablet computer to be true, and that RIM hoped to make inroads into the business community, even calling its device the "first professional-grade tablet." (We obviously don't know what it takes for a tablet to lose its amateur status, though.)
However, there are at least five reasons why anyone thinking of buying a PlayBook should wait.

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Research In Motion - San Francisco - IPad - Android - Tablet computer

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