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