However, by using the WACI I have a dedicated piece of hardware that's only function is to send commands to my stuff no matter which interface I create to control it.

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While such forces have played a minor role for Groupon, issues of software elegance and interface sophistication matter far less than simply managing marketing and growth.

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BeoSound 5 lets you command all of your music, no matter where it's stored, from one intuitive interface.

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"Once it gets down to the real heart of the matter, a processor is a processor, it is only the interface that makes a difference, " said Marc McDermott, chief of the electronic services division of the Nevada Gaming Control Board.

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Metro is the tiled based interface designed to work best with direct touch, and for that matter voice and Kinect-like air-gestures.

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It takes a little getting used to, but the interface is fairly intuitive and I was able to gain simple mastery over the ball in a matter of minutes.

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