This Way Up for Saturday 30 August 2008
Dr Paul Bosland's the director of New Mexico State University's Chile Pepper Institute.
Using mobile phone signals to show you where's busy and where's not. Plus technology news with Bill Thompson.
We meet a canine behaviour specialist and a few mischievous mutts.
Keith Newman's written the definitive history of the internet in New Zealand.
The Spanish government's pulling out all the stops to reduce energy use.