If you own a BlackBerry and use a Mac, this is for you.

Up until this point Mac users have been stuck with PocketMac SyncManager
for interfacing with their BlackBerrys, and have missed out on many of
the features built into the Windows client.  This has now changed some
what, with the release of a Desktop Manager for the Mac.  This new
software will allow you to sync your iTunes libraries, and
add/remove/update your software.  While it doesn't sound like it's an
equivalent product to the Windows version, this is a big step in the
right direction for Mac users.

If you give this a try, please report back on your experiences.

http://na.blackberry.com/eng/services/desktop/desktop_mac.jsp

Thanks,
-kent