When I hit crossings while mapping, I tend to draw the joining ways as a small stub, as an indication for the next mapper (well, err, hopefully me :). Admittedly, those stubs look ugly on the map. But of course this is an interim state as we will have the missing ways in out database soon:
I use Viking for planning hiking or biking (aka mapping :) tours. It allows to overlay various maps transparently, so I can have a translucent OSM map layered over some sat imagery. Interestingly, the sat images often do not show some ways in the woods, even that they are gravelled. Therefore the stubs in the OSM map are a very good indicator where still unmapped ways start and end.
Though I have mapped a lot of ways in the Bienwald already, I’m still impressed how many unmapped ways I still can find while being on-site. Today I did a tour to complete some of the stubs between Neuburg, Kandel and Wörth. But frankly, being back, it appears that I added more new stubs than I removed.
BTW: What an excellent waste of time it is being an OSM addict and mapper. For a ridiculous tour of about 60km, I needed 6 hours! Every now and then you need to stop, grab your favourite mapping gadget, struggle a bit with the applications and (finally) to enter some data into the device. It’s just marvellous and much better than watching TV and the like. Before osm2go, I spent 4 hours outside and almost the same time at home in front of the computer. Now I spend 6 hours outside and 30 minutes for some minor editing using my desktop machine. The ratio is not that bad. If the tools I use (well, expecially the ones I’ve written myself :) were a bit more reliable, the ratio could become even better.