Java Conduit Manager - Manages installations and de-installations of Java based conduits to the Palm HotSync Manager. - http://www.javaconduitmanager.org/
SuperWaba - An open source Java VM for handheld development. - http://www.superwaba.com.br/
JBed CLDC/MIDP for PalmOS - Esmertec's optimized CLDC/MIDP JVM for PalmOS. 10 times faster than the KVM from Sun. - http://www.esmertec.com/
Ghost Machine - An implementation of Java for the PalmPilot. In order to effectively run Java on this limited device, much of the VM's activity is off-loaded to a server. - http://www.cs.utah.edu/~mcdirmid/ghost/
Waba - A simplified version of Java for the PalmPilot and Windows CE devices. The WabaVM and WabaSDK are available for free download. By Wabasoft. - http://www.wabasoft.com/
Jump - Java User Module for PalmPilot - A Java IDE for the PalmPilot. Reads Java Class files, generates 68000 .asm files and creates .prc files using Pila (Darrin Massena's PalmPilot Assembler) - http://www.hewgill.com/pilot/jump/index.html