interesting. i didn't realise that java was available for maemo, but have been using java via easy debian. from what i read above the advantage easy debian seems to have is 'long press' for right click. also you can change the look and feel via gtk. i'm using the following command to run a bluetooth ftp program called obexftp-frontend

java -jar -Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKL ookAndFeel obexftp-frontend-core-0.6.4.jar >/dev/null 2>&1

when i run this via the "debbie" command from maemo it squishes everything to fit the window which is desirable sometimes, but when i run it from the easy debian desktop it doesn't squish things and i have to use e.d. ctrl-. (ctrl-period) to move the window around, which is desirable sometimes.

edit: to use the look and feel '-D' switch with java in easy debian to get it to mimic your easy debian theme and fonts you may need to install libswt-gtk via symantic