Music WithMe 1.3.4
the author of this app says:
The BlackBerry Torch's media player with new graphical user interface means that all iTunes tracks synced with Music WithMe will be played back with full album art. Users can sort through the tracks in their playlist and quickly decide which song to play. Tracks are stored directly on the device and with the BlackBerry Torch's expanded storage capacity, users can sync an almost limitless amount of their iTunes music.
With Music WithMe users create and amend their playlists as normally within iTunes on their Windows machine. All playlist changes are automatically synced with their smartphone, enabling users to see their latest playlist updates. Music WithMe also supports playlist folders, by selecting the playlist folder on the Music WithMe app all the tracks contained within those playlists are downloaded.
Purchasing apps from BlackBerry App World requires a PayPal account. BlackBerry OS 4.5 and above. Music WithMe is currently compatible with iTunes (v7.1 and above) on Windows XP/Vista/7.