At least the keyboard (and probably the whole machine) is produced by Quanta Computers. It's the world's largest notebook manufacturer and makes machines for both Apple and Dell.

至少，键盘(也可能是整机)是由广达电脑生产。这是世界上最大的笔记本电脑制造商，并提出两个苹果和戴尔的机器。

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Quanta already builds tablet computers for RIM and Sony.

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The plain brown boxes could contain almost anything, of course: Apple's mysterious new tablet computers, new Apple notebooks, even a product for one of Quanta's other customers.

FORBES: Magazine Article