multi users?

[noodle42]

hi treo'ers, first i think this forum is great i've learned a lot about my treo 600 from here, and proud to own this great piece of technology.
ok here is my question,... does anyone know if i can set up the palm desktop with multi users and synch with the treo in different user settings? make sense? for example i have a ton of numbers for employee's and a ton of numbers for personal and i'd like to keep it separate. so far i think i'd have to list each number and catorgorize each name. but it would be cool if i can log into the treo as a different user. if anyone has any suggestions i'd be grateful.
thank you