Google, Microsoft, Amazon Renew Tablet Melee with Apple

JUST PILING IT ON: Google announced three new Nexus devices--in sizes S, M, and L, (or rather, a 4-inch smartphone, a 7-inch "even more portable" tablet, and a 10-inch "premium entertainment device." This comes, of course, on the heels Apple's iPad mini announcement, which Amazon briefly dissed on its homepage. And oh, don't forget about the Surface!

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