PalmOS 3.3 upgrade (not for Palm VII or IIIe)
some recommended software:
www.BackupBuddy.com : (for windows) backs up all databases during a hotsync, not just the built in apps' data.
iSilo : text (or html) viewer
aportis (Doc and Brainforest)
TealPoint software
Launcher III : program launcher, can replace built-in launcher.