All the maps and datasets can be browsed here: http://data.gov.uk/data/publicbody/Ordnance%2520Survey http://data.gov.uk/data/publicbody/Ordnance%2520Survey D

All the maps and datasets can be browsed here: http://data.gov.uk/data/publicbody/Ordnance%2520Survey http://data.gov.uk/data/publicbody/Ordnance%2520Survey Data includes postcode to GPS co-ordinates (http://data.gov.uk/dataset/os-code-point-open http://data.gov.uk/dataset/os-code-point-open) and locations of all bus stops and train stations (http://data.gov.uk/dataset/naptan http://data.gov.uk/dataset/naptan).