And of course what fun is it to have a Java VM, vi (via busybox) and not be able to compile java source on your iLiad?
http://s91215199.onlinehome.us/zaurus/ZJikes.zip
I unpack that zip at the same level as wonka. An example of using it to compile my (working) RSS feed puller:
./jikes -g -classpath ../fsroot/system/wre.jar:xpp3-1.1.3.4.K.jar TheDailyiLiadian.java
So with a few more tweaks to wonka for the e-ink, there you have it: a complete SDK on the iLiad itself.