"We've always been selling a concept, not just a product, " says Anil Jain, 43.

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He was selling that day in SoHo: selling the All-Star Game, selling the MLS, selling the concept of the "Beckham Effect" on the U.S. Soccer.

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This ability to perform small tasks during bits of downtime is a major selling point in the concept of a mobile workforce.

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So to address your first question: Yes, Paul has sold out, but I'm not sure the concept of selling out has all that much traction anymore.

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Hollywood is still clinging on to the concept of selling physical goods like BluRay and DVD disks and giving those formats an advantage over legal streams.

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To see why, the concept of short-selling needs to be defined.

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Of course, publishers selling product is not a new concept.

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"Apple is getting to be a royal pain in determining who can get at their applications store, " says Farber, who welcomes the concept of an open forum for selling applications.

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Wal-Mart was experimenting with selling groceries at six stores but hadn't figured out how to expand the concept.

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