There is a frantic discussion over the UK Government Data Developers mailing list, over
freeing UK postcodes, after the recent
freeze of their
provision to UK aid agencies. As a business user (not a developer) I use free area code data (kilometer precision), and paid my £50 for 1000 points from postcodeanywehere.co.uk (meter precision). This doesn't negate the need to call for freeing up data sources, but as business I must be practical and timely.