After almost four years, my Nokia E71 is retired. I chose Nokia Asha 302 as replacement. I still use iPhone 4S as my primary phone. The Asha is just for sidekick, when I needed the keyboard to chat.
As a Mac user, I always use iSync from the first time with my PowerBook and SonyEricsson W850i. Then, I rely to iSync to keep my contacts and calendar synchronized across Mac and phones.