I have been using Missing Sync and iSync together to sync my 600 with my Powerbook. Don't even use Palm Desktop. Apparently with Tiger, iSync has been modified so that 3rd party conduit apps are unncessary. Has anyone tried to sync only using iSync in Tiger? I really like the Missing Sync Memo Pad that is a stand alone app. Keep it in my sidebar and use it all the time between phone & computer. I think I might lose this feature if I bypass Missing Sync. Input would be appreciated.