Research In Motion has just released Version 4.0.20 of PocketMac for BlackBerry. That is the software to use if you want to sync your address book, calendar, notes, tasks, Safari bookmarks, etc. to the BlackBerry. You can use it to install applications to the BlackBerry, too!
The instructions for downloading it are below.
Step 1: Click Here To Start The Downloading Process: BlackBerry - BlackBerry for Mac
Step 2: Click On The "Download" Link
When you get to the download software page, click on the "Download" a copy of PocketMac for BlackBerry link.
Step 3: Choose "PocketMac v4.0.20 for BlackBerry"
Select "PocketMac v4.0 for BlackBerry" from the choice of software products to download. Click "Next" and fill in the contact information.
Step 4: Click "Download Software"
The final step is simple. Just click the "Download Software" link
Hope this helps!