SugarSync Mobile for BlackBerry is still in Beta mode. Perhaps of this fact, mobile file editing is currently limited to certain file types. Also supported files may require a separate document editor shipping only on newer versions of the Blackberry devices.*

For downloading SugarSync Mobile manager point your BlackBerry browser to m.sugarsync.com and click the “Download SugarSync Mobile” link.

SugarSync for Blackberry features

1. Remote file access and editing
   Retrieve, edit and upload files stored on other computers and the Internet (including Microsoft Office docs, music, videos, etc).
   Note: May require a Blackberry document editor.*
2. On-demand synchronization
   SugarSync detects any file changes and presents the opportunity to upload revisions back to the cloud (and to multiple synced computers).
3. Shared Folders
   Send files and folders (large and small) to anyone via an email sent directly from the Blackberry, and collaborate on projects through a web-based Shared Folder (which can sync back to the Blackberry).
4. Powerful Photo Features
   Easy browsing with a thumbnail wall display of photo albums, enjoy detail with high resolution photo viewing, and directly upload and sync photos taken with the Blackberry camera.

Because I have not BlackBerry myself, I did not test SugarSync Mobile for BlackBerry.