Sadly, the BBC's intentions to release it in-house geo-location API was long ago stymied by various licencing nightmares (It's been 'coming soon' since May 2005 http://backstage.bbc.co.uk/data/PostcoderApI?v=msy )
However, good news for those who fancy playing with postcodes, addresses and associated geolocation goodness: the full Royal Mail Postcode PAF file is available to those entering the Cabinet Office's ShowUsABetterWay.com data re-use competition. See http://www.showusabetterway.co.uk/call/data.html#mail for details of how to get hold of the file,but don't dawdle as the competition runs to end of Sept. -Tom
