Oprah Winfrey, who named Microsoft's Surface as one of her "Favorite Things" for 2012 praised the new Windows RT tablet on Twitter, but apparently the message came on an iPad.
Olixar Light Bulb: A Bluetooth enabled speaker that also illuminates the room
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Windows 10 for phones
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Amazon Echo Review: "Alexa, why are you so cool and frustrating at the same time?"
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Our coverage of the Mobile World Conference 2015
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