Found a neat GPL J2ME racing game : http://code.google.com/p/oppositelock/
Wanted to package it with PhoneMe on the GP2X, but had to compile it first to get the resolution right for 320x240.
Ended up setting up Eclipse, EclipseME and Sun JWT (Java WirelessToolkit) to build the thing. Had to do it on a 32-bit virtual machine, as Sun JWT doesn't have a 64-bit version, and getting everything 32-bit on a 64-bit Linux is a hassle.
Finished packaging it for the GP2x (Gamepark) with PhoneME for j2ME and uploaded it to: GP2X_Archive