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Cranky IT managers, rejoice: Forrester Research has prepared a thoroughly footnoted report that explains why you shouldn't support those pesky iPhones everyone is excitedly bringing into the office. Fortune offers a one-page summary, but warns that Apple is hiring Outlook and Exchange compatibility engineers to make your life more complicated. (Sent from my Verizon Wireless BlackBerry)

(Photo/Photoshop courtesy of Engadget)