The reference to the collaboration with Berners-Lee was mentioned at the recent Online Information Conference. If it comes off as planned and on schedule (a cause for celebration in itself?), this could be a very good illustration of the power of the so-called 'semantic web'.
Key paragraph and website: "We will make government data accessible through a single access point at www.data.gov.uk, which will go live from January 2010 with over 1,100 central government datasets free for reuse, ranging from lists of schools to traffic volumes on the trunk road network."