Ubuntu One

Ubuntu One screenshots

Ubuntu One allows you to store and share files in the Ubuntu One cloud storage
Menu Window
Ubuntu One 4.0 : Menu Window

Alternative downloads

Allway Sync
Sync data between your desktop PCs, laptops, tablets, and more.
17.1.3
WD Sync
Sync your files to the My Cloud device on your network.
1.3.5949.26210
FREE
Egnyte Desktop Sync
Desktop Sync ca create files on your computer and sync them to the cloud.
8.5.3
FREE