Real name: PJ Naughter. I'm mapping in the Wexford, Carlow and Wicklow area. I use a Garmin Etrex Vista HCx handheld unit but I also use an old Garmin Nuvi 660 as well as OSMTracker on a Windows Mobile HTC Touch Pro 2 smartphone. I've been OSM'ing since November 2008. Professionally I am a independent software consultant specialising in Windows native mode development. My web site is http://www.naughter.com which includes quite a bit of Open Source C++ source code.
I've also produced an Open Source control called COSMCtrl to render a Slippy Map in your MFC native mode C++ applications. The basis of the algorithms is from Slippy map tilenames. You can download the code from http://www.naughter.com/osmctrl.html