Media Viewer is an advanced iTunes plugin that enables you to view photos in fullscreen, to create slideshows and has build file manager that enables you to browse your phone files and change attributes.

This new version supports creating backup of SMS (will be created in /b/iTunes/MV/SMSArchive/), ability to manage playlists, included SMS@Sender (for sending SMS messages), ability to manage web sessions, fix of the melody DB (by delete of MyTone.db file), ability to capture photos with the camera and many others.

It definetly became the most powerfull tool for your mobile phone.