RIM has updated BDM yet again with features added that were removed previously. Support has also been added for Windows 7 and the newest BlackBerry devices like the Storm 2 and Bold 9700. Another cool feature is the ability to add new fields to your address book. Backup/Restore has been improved as well.
I think its worth upgrading.
Get it here: http://na.blackberry.com/eng/services/desktop/
More info here.