Hi - I'm also known as Tallguy - http://www.openstreetmap.org/user/Tallguy
You've stumbled across the ramblings of a cycling mapper from Swanley in Kent, UK. I discovered OSM in March 2008 & became quickly engrossed. OSM has become my favourite hobby, & my wife & I now find that mapping is part of our objectives when on one of our trips away from home.
I now cycle on a recumbent trike & survey using a mobile phone, which is vastly different to the palm pilot and blue-tooth gps that I started with.
I'm heavily involved in the Humanitarian OpenStreetMap Team and help to update http://learnosm.org/en/. If you've got the time, check out my OSM diary entry on my trip to Sierra Leone, helping to train local volunteers in surveying & updating OpenStreetMap. Many people will have met me at a mapathon in London, where I am one of the instructors for http://www.missingmaps.org/