Nokia recently has developed some very good thing to go with their mobile phones. Like Ovi service which allow you to store files, music and photos online. And their music and app stores etc.
So switching to their phones seems like a good idea now. But i am really hesitant of using symbian. But with their new Nokia n900 it will run linux and is built top to bottom for touch usage. Unlike other nokia phones which come with clunky ui for touch interface.
The user interface looks really cool and customizable.