The Ordnance Survey has opened source code to web 2.0 applications. According to the OS,
Web developers are this week previewing a free online platform to help them experiment with their data. Under an application programming interface (API) developers will register for a feed of data to experiment with non-commercially. It includes a range of mapping scales covering the whole of Great Britain down to street level. Developers can access up to 30 000 “tiles” or extracts of data a day and up to 1 000 place name look-ups. OS OpenSpace allows users to add markers, lines and polygons on top of Ordnance Survey maps, search for place names with a gazetteer and display other location data from elsewhere on the web.
See openspace.ordnancesurvey.co.uk. For information on the Developer Programme see www.ordnancesurvey.co.uk/partnerships/developers.