You can manage your files/folders on sd-card/Dropbox/Boxnet.
Features: 1. Open/Rename/Delete file 2. Create new folder 3. Copy/Move files and folders 4. Send files 5. Zip/Unzip files for sd-card 6. Install Application from file 7. Share/Unshare/Send Shared Link for Box.net 8. Send Shared Link for Dropbox