Stayed up all night learning to use JOSM properly (well, from about 1am anyway). Suddenly realised it was ~5am and that it wasn't worth going to bed. But I did a tonne of updates! Had only got node editing practice before, but now I'm getting happier adding/editing/splitting ways, and even did an area. It's really not the simplest interface to learn, but I can see how it can be quite quick to use when your fingers know the shortcut keys well. Still managed to hit Ctrl-Z too often while using Ctrl-Alt-Shift to add nodes near existing items. Honestly, 3 simultaneous fingers plus a mouse click! Maybe I need to check the manual or default options more. Also still not happy how to get the layers set up and having the ones I want visible at the same time (and actually usefully visible, not in grey/... I know I can mess with colours, not done that yet much except for my GPS traces). Why does it sometimes seem to make a layer invisible if I click on it and other times not, but if I test clicking on the left end of it rather than the name it doesn't make a difference!

JOSM rant...
I want to be able to move around the map using Search, or double-clicking on a node in the "commands" window to check it out... Or when the validation plugin pulls up a problem, to be able to go to it and highlight it for a second or so when I click on it! I don't really know enough Java to help out without it being slow and painful, but if I did I'd be v.tempted!

Localities Edited...
Woolwich Royal Arsenal development - improvements to one or two paths and tags, added the square on the main walkway down to the riverfront (but wasn't sure on how to tag it, so left a FIXME tag with a note).

south side of Vauxhall - road names in some of the residential areas there, one-way indicattors (meant reversing and splitting/re-combining a few way segments, so good practice!)

General random updates/edits to add postboxes, telephone boxes and the ref no's on them for some south west/central-west areas of London UK where I've cycled through (obsessively stopping for them in some cases.. oh dear!), and a little out towards Fenchurch Street station. Note to self: need to make sure gps has a better lock before making annotations (even though I'm good at noting which side of a junction/road a note is for even if the gps isn't accurate).

GPS tracking apps (Symbiam/S60)...
I like WhereAmI+ at the moment on my Nokia N95 8Gb, feels more developery and resiliant to accidental quits/hitting the wrong key; tried MGMaps but I think it seemed to lose my edits if I accidentally quit the app, happens sometimes. Need to look into more. If you have a (free cost-wise/v.good value for money) fave, suggestions welcomed.

John.
Might even have to consider getting a good quality BlueTooth GPS 'mouse' if this carries on...