similar issue here - with office 2007. the synchronisation works ok with the calendar appointments made in the same time zone (EET). if somebody makes an appointment from a different time zone, the difference is ignored, and the appointment in the phone calendar is the originators local time. e.g. if somebody from germany makes an appointment at 12 CET, it shows 13 EET in Outlook, but 12 EET in the N900 calendar.