World Tech Update #93

World Tech Update #93, December 4, 2009 On this week's World Tech Update Microsoft releases a richer version of its online mapping service, Intel unveils a 48-core research chip, Tim Berners Lee talks about privacy on the web, Facebook's Zuckerberg announces major changes to the social networking site, an iPhone application helps commuters measure and reduce their carbon footprint and China logs slow iPhone sales. 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