Williams: We came out with a preview, not a real product yet, a few weeks ago.

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Game makers, for instance, are accustomed to filling the months preceding a product launch with a groundswell of hype and preview events.

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He has been the point man for every recent product announcement, including the October debut of new Macbook Airs and the sneak preview of the new version of OSX.

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The line, which boasted merchandise from 24 upscale designers such as Diane von Furstenberg, Oscar de la Renta and Tracy Reese, was priced too high, was ill-timed within the holiday season, and the retailer overestimated product demand, Joshua Thomas, a Target spokesman, told Forbes, during a preview of a spring fashion collection from celebrity stylist Kate Young in New York City this week.

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"Since our first preview release last September, millions of people now use the pre-release product on a daily basis and millions more have been taking it through its paces, totaling hundreds of millions of hours of testing, " Microsoft's Steven Sinofsky wrote Friday on the Windows 8 blog.

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