Please check iNoki at: http://www.nokisoft.com/inoki. It's an iPhone app which can extract and import data in .NBU file created by Nokia PC Suite. All phonebook, sms, calendar, photo, audio, videos...
It Is Not Possible directly. But If You Have Little Amount Of Contacts Then You Can Take The Help Of The SIM Card.Move The Contacts From Nokia's Phone memory To The SIM Memory..Then Insert The SIM To...
copy them to the simand then to the other phone it cane be done after "marking" all of your contacts and then selecting copy to sim and on the blackberry you just import them from the sim card