Well my two and a half year long partneship with 1600 ended this month when I lost my cell but I must say those two and a half years were really easy sailing with nokia 1600. when it comes to nokia I am a big time brand loyal... types of user interface, designing, durabilty, backup all world class.
About 1600 a very good and decent phone in the range. user friendly, good loudspeaker, good backup and yes also the mp3 ringtones. A basic phone with almost 70 to 90 message memory which is again not bad. Liked the phone never find any loophole in the phone.... and a stongly recommended phone but the which I thought nokia could have worked on was the size of screen which at times looks little small as comared to other nokia phones but then not a major issue.
Looking at my brand loyaltiy I have bought now nokia 2760.. again a very good lookin phone in the range. Hope to write a similarly good review for 2760 also...