I've spent a few hours busying myself with tracing the roads from the NPE in Pembrokeshire that I know are still pretty much the same. It's filled out nicely. St Bride's peninsular is pretty much complete, it's almost all rural there, and I've been working north from Haverfordwest towards Fishguard.
I haven't lived there for a few years now, but I've visited a few times since, and I hope that my memory is as good as I think it is. If anyone else is mapping the area, I hope I haven't done anything too wrong.
Out in Pembrokeshire, the New Popular Edition WMS server really needs to reproject properly, since you have to re-align the image in JOSM with the grid every few hundred metres, because of the skew between the OSGB and WGS84
Discussion
Comment from Welshie on 6 May 2008 at 19:36
Many thanks to RichardF, who re-projected most of the Welsh NPE sheets to use in Potlatch. This corrects the worst of the alignment problems I was facing with JOSM and the NPE WMS server.