I forgot to mention that while I was home over Christmas I did some work on starting to get Northern Ireland mapped. Many online map services don't have particularly good coverage of NI outside of major roads and Belfast. Look, for example, at Google's map of Newry, where my parents live. Compare this with what I managed to get done with OpenStreetMap's map of Newry. And I didn't spend a whole lot of time getting tracks, so just imagine what I could get covered with a more concerted effort. I also covered the A1/M1 from Belfast to Newry; I'd hoped to cover the road to the point where it crosses into Ireland, but didn't get round to it.
Anyway, what I've managed is at OpenStreetMap Northern Ireland. I've a little bit more to upload at some point when I have time, but I'm hoping that others who actually live in NI will start to do some work towards it as well. I notice Ireland has now got a number of roads added as well - there was nothing when I was doing NI. Maybe they'll get connected at some point soon. Like, say, when I'm home next month and fly into Dublin. :)