Gingerbread does nothing for the phone and trashes the music player. Even if you had cover art showing in the music player for all your albums in Android 2.2, and this was not easy to do, 2.3.3 adds an additional hoop to jump through: none of your songs can have apostrophes in the titles, otherwise you get the grey disk for the whole album.
Tech support NO HELP, and no rollback option to 2.2.
What serious software enterprise does not have a disaster recovery plan? Verizon.
This kind of QA throws my opinion of the whole franchise into question. Didn't they test the music player?