This is taken from blackberryforums
This blackberry software application allows you to download OTA files instantly to your desktop. instead of having to enter the full URL of the download on your blackberry, you can just enter the OTA link into the software and click download, the program will now download all required files...
the biggest benefit might even be that you can create a backup of all OTA software / themes.... since we all know that sometimes the best downloads go offline first, and when theres nowhere on the net a backup available of your fancy theme, you're pooped....