For a while now, We have given you news prior to about BlackBerry Desktop Manager will become BlackBerry Link about the time of the new BlackBerry 1o launch. What is interesting however following the new BlackBerry 10 Dev Alpha OS 10.0.09.2320 update from earlier today, the update has been dove in deeper to show files that are contain and they are as such:
BlackBerry Link 1.0 supports new mobile-enabled BlackBerry PlayBook tablet. With the BlackBerry Link 1.0, you can create a backup file that was created while using the BlackBerry Desktop Software for Windows, restore your BlackBerry smartphone or tablet. When syncing contacts the BlackBerry Desktop Software also maps groups from your Apple Address Book to a category with the same name in the Contacts application on your smartphone. For more information, see http://www.blackberry.com/desktop/docs/.
[This particular file isn't in English so I used Google Translate to see what it says]
Currently there is not a way to download BlackBerry Link, as the download site is not active.