A HotSync™ name is the unique identifier of your PDA. You define this at the time you set up your PDA. When the PDA synchronizes with your PC it uses this to identify which files to synchronize. If you are not sure what your HotSync name is you can find it by invoking the HotSync on your PDA (Palm OS).
Your HotSync name will be in the top right-hand portion of the screen.