Tablets are lean-back, browse-oriented experiences, and often used in conjunction with other media.

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Peter Kafka wrote a thought-provoking article for All Things D a few weeks ago that leaned heavily toward lean-back.

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Sure, the kickstand means you can set it up on a coffee table if you like, but that's hardly the ideal, couch-based, lean-back experience most tablets do so well.

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That said, there is increasing evidence that an over-reliance on planning, management and measurement in the front-end of innovation as evidenced by the movement of back-end processes such as lean and six sigma to the front end of innovation, are producing poor returns on innovation effort.

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The pleasure, the convenience-- all a person had to do was lean back and be entertained.

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To the extent that couples are making choices that prompt one of them, in Ms. Sandberg's words, to "pull back" from high-powered careers rather than "lean in, " the dollars and cents of the nation's gross domestic product is reduced.

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Despite some bumps in the road (notably some lean years in the mid-1980s and the Pentium chip bug in 1994), Moore and Noyce have never looked back.

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