Acer's superthin ultrabooks

Acer debuted a trio of new ultrabooks on Sunday. At just 15mm thick, the Aspire S5 is said to be the "world's thinnest" 13-inch laptop. Meanwhile, the new Timeline Ultra laptops have 14- and 15-inch screens and optical drives, stretching the definition of "ultrabook."

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Acer unveils ultrabooks, cloud, and little else