Mr. Marsh and his brother-in-law Hyman Golden originally ran a Brooklyn-based window-washing and office-maintenance business.

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Soladigm, a smart window start-up based in Milpitas, Calif.

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How about eight-window simultaneous multi-display, an Opera-based web browser, DLNA, and a 3TB hard disk drive, 2TB for "time-shift" recording recording up to 26 hours of programs, up to eight channels simultaneously.

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From there, you can install virtual versions of almost any other operating system--be it an old copy of Window's XP or a fresh copy of the latest Linux-based Ubuntu release.

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The other is Cheltenham-based Epwin Group, which owns Europlas Window.

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Many more of the US-based players are putting themselves in the shop window at this tournament.

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This translates to a six-hour window either side of the expected decay which is based on a range of probabilities.

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Tommy Franks, Central Command commander, was given essentially a 48-hour window to launch this attack at his discretion, based on the conditions he saw at the ground, when he felt the timing would be absolutely right.

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Rather than calling at a specific time, this Santa, based in Colorado, gives a half-hour window.

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He also avoids Web-based tools, because "when you open up a browser window, there are 35 tabs there staring at you with stuff you need to get done, fighting for your attention, " he says.

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