The implementation of Sir Tim’s “Raw Data Now” vision is well under way in the UK. UK government data are being released and the process is open for input from developers that may want to contribute. Open except from the fact that they have to join a closed Google group (a bit ironic don’t you think?).
Anyway, the data is now available in RDF and can be queried via SPARQL. You can find some useful examples of such queries from Leigh Dodds at the Talis blog. Happy querying! 😉