I managed today to make the blackdown j2sdk 1.3.1 work under X/QT. It just worked out of the box without any hassle. I just downloaded the ipk from http://radio.weblogs.com/0102385/categorie...03/06.html#a533 and followed the instructions.
A larger swing app I've tested is working fine so far: http://jipe.sourceforge.net
Maybe it's no eclipse, but it has got syntax highlighting in color, auto indenting, code completition etc.
Just the curly braces issue has to be resolved xterm problems in X/QT and curly braces But anyway it's much nicer than any other zaurus ide like minde eide, etc..