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Apple Doesn't Want You to Self-Repair Devices - Invents Pentalobe Screw
Consumerist tells us that Apple is switching to a special new screw called by some a Pentalobe, by iFixit an "Evil Proprietary Tamper Proof Five Point Screw" (or the EPTP5PS). It is designed to make it impossible for anyone but Apple to service your iPhone or computer. Consumerist also notes that if you take your iPhone in for repairs, they will replace all the screws with the EPTP5PS.