After some more »out of memory«-messages by josm, I thought it's time to look out for alternatives.
For the openstreetmap-project, the two main editors are josm (java) and potlach (flash). I think using java probably wasn't a very wise decision (I still wonder how an app can get »out of memory« after loading about 5 MB of images, do they create a pixel class and store every pixel in an object?) and I don't like flash either.
There's another project called
merkaartor and today I had a look. My first feeling is that it's promising. It has good performance, it does nice live-rendering and it supports the basic features (adding nodes and ways, up/downloading stuff to the osm-system).
Sure, comparing to the large list of plugin features josm has, it's limited. Maybe I'll try to hack in some bits I'm missing at the moment.
In my continuing effort to improve gentoo for geo-related stuff, I've just added a merkaartor package to portage.