The IBM Web Sphere is Java J2ME. I am not sure how good it is, but I will be playing around with it. I posted another location wondering what kind of applications whould be good to have from java... so that I could think about a project to work on as I was learning to program in java... anyway.

Will post more regarding Java and Palm.
But, yes, JAVA can be resource hungry!!!

This is my first palm device, so I don't know much yet.