Believe it or not, it was back in 2006 that the chipmaker first started talking about its "new class of x86 processors" and the idea of an Accelerated Processing Unit (APU) -- a chip that would combine a CPU and a fairly powerful ATI GPU onto the same die.

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He has his defenders moving on the training ground as if joined together by an invisible rope - the key idea being that they must defend as a unit.

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M-PESA, technically a business unit of Vodafone, which holds the patent for the idea, is now being implemented in South Africa by Vodacom, where Lonie acts as executive head of its mobile payments business.

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As it turns out, the crux of the invention was head-slappingly simple: though a patent-pending idea Smith calls "get out of the way control, " the unit measures the load on each joint as its operator moves about, and figures out the direction it needs to move in 3-D space to literally move out of the way.

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