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GRiD Systems: GRiDPad
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AT&T: EO Personal Communicator
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Apple: Apple Newton
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Palm, Inc: PalmPilot
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Intel: WebPAD
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Screen Media AS: FreePad
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Microsoft: Pocket PC 2000
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Microsoft: Microsoft Tablet PC
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Nokia: Nokia 770
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Android: Archos 5
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iPad with wi-fi and 3G hits store
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15 million iPads sold
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Amazon: Kindle Fire
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Microsoft: Surface
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121 million iPads sold
