Hello, yesterday i bought a new iPhone 4s also i updated to the new itunes 10.3 so i am not sure which is the problem, i did jailbreak it too yesterday. Well after i finished backing up the iphone from a 3g version and synced all my songs, few of my 300~ artist album art were missing also the lyrics of those songs. since they were a few only i noticed they were missing on itunes too so i re added them and all was kinda fixed after another sync, BUT when i check the artist in the phone by letter some artists are sorted bad. Some starting with a letter were in another letter list and when i got to the end the 123 artists were filled with v artists and the list don't finishes. Even thought in the sorting list in abc order the last ones were missing they were available and synced fine if you search by album or using siri or iphone search.