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Coming up on World Tech Update this week VeriFone accuses Square of enabling skimming, Sony's CEO taps his likely successor, a Windows Phone 7 update is delayed, space shuttle Discovery touches down for the last time, Facebook offers movie rentals, gadgets keep us awake, and Cisco's home video conferencing system gets an update and price cut. Find out what's coming up on each week's show by following us on Twitter (WorldTechUpdate) or check out our Facebook fan page at www.facebook.com/worldtechupdate

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