I'm James Pain, A 'computer guy' living in Colchester. I am mainly adding more detail to the OSM data of Central Colchester. I have had an account here for a couple of years and know most of the in's and out's OSM has but have been light on contributions despite my knowledge.
My GPS is the Nexus One Android Mobile that seems to be quite accurate. I use the software Osmdroid, vespucci and JOSM.
My account on the main website is: http://www.openstreetmap.org/user/James%20Pain