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Is the US dollar going to be knocked off its perch as the only true global currency?

Lesley Curwen talks to economist Barry Eichengreen, author of Exorbitant Privilege: the Rise and Fall of the Dollar.

Plus David Placek, the man who named the Pentium chip and Blackberry phone, explains what makes a great brand name.

And technology commentator Jeremy Wagstaff looks at what an 'internet of things' might mean for the users of smartphones.