Looks like RIM is finally going to make a good effort to provide a native desktop solution for syncing your Blackberry to your Apple computer. The folks over at Engadget have information about Blackberry Desktop Manager coming to Mac sometime in September. So be sure to check out their site, along with Crackberry.com and RIM directly for further updates.
This one has been a long time coming..
Solved! Go to Correct Answer
So...any news on the problem for Mac OS X Tiger (10.4) users? I have a Macbook and an iMac that are each 3 years old, and I am not inclined to spend a ton of money to go to Leopard or Snow Leopard JUST to sync my BlackBerry or use the BlackBerry as a USB tethered modem, especially since Bluetooth tethering is working great with Tiger on the Macbook. I have used PocketMac to transfer iTunes to the phone but I would LIKE to have both a VZAccessManager and a Desktop Manager for my BlackBerry that runs on Tiger...
I'm sorry, but I absolutely hate the Mac sync software. The Backup Assistant is very slightly better. The software still functions like it is made for PC not Mac. For instance, when you sync an IPhone with a Mac, it is a true sync with options. The first and last time I used the Mac sync software from Verizon it wiped out my contacts.