There are .svn directories inside the BluePad.jar 0.4. The bluepad_0.4_mobile/BluePad/BluePad.jar is examined from bluepad_0.4_mobile.tar.gz, the following directories are not necessary:
.svn
global/.svn
images/.svn
images/small_icons/.svn
keys_conf/.svn
languages/.svn
Removing these directories from the jar file will make the BluePad.jar smaller.
The WTK 2.5.2 User's Guide, Chapter 3.8.4 'Working with Revision Control Systems' at http://download-llnw.oracle.com/javame/dev-tools/wtk-cldc-2.5.2-01/UserGuide-html/projects.html#50626613_pgfId-49958 describes a way how to exclude version control directories. Unfortunately only SCCS, RCS and CVS are supported.