Well the same bug that's been there since Iphone1 has been ported to the new Iphone 3g 2.0.1 firmware. I was happily listening to my music all day today, maybe 30 songs, at work. Went to dinner, surfed the web on the phone, came home went for a walk listened to 10 more songs. Came home and synced. The stupid IPhone only updated the playlist data for the last 10 songs. All the other data was deleted for no reason. When will Apple fix this bug? None of the Ipods I've owned ever had this problem. I could listen to songs for an entire week and sync with no problems on the ipod. The XML data stored on this Iphone is easily deleted for no reason whatsoever. Please go to apple.com/feedback and leave another bug report. This has to be fixed. I'm constantly having to worry about syncing all the time. I've tried all the tricks on how to create two smart playlists, one that just points to my main one, etc. nothing works.