I'm a new user of NOKIA and I am missing an application as my old SONY ERICSSON have: SonyEricsson Themes Creator.
This is an application developed for the own Sony Ericsson for MACINTOSH and WINDOWS systems, and it allow both create and edit themes for the the, practically, totality of terminal models.
Also SONY ERICSSON has a plug-in for the iCal® application (incorporated to MacOS X system) that allow the syncronization between any Mac with any SONY ERICSSON terminal.
As user of Macintosh system I'm asking myself if my decision to change SonyEricsson by Nokia were a right decision.