Are you a Windows user in need of yet another cloud storage option? Lucky for you, after a long-running beta, Canonical's Ubuntu One client has officially debuted on Microsoft's platform. First introduced with Ubuntu 10.10, the service offers 5GB of free storage, with file syncing across multiple machines, ala Dropbox. Android and iOS clients are already available. If you need more space, how about 20GB for $29.99 a year or $2.99 a month? And if portable tunes is your game, you can have that same 20GB along with music streaming apps (similar to Google Music Beta) for $39.99 a year or $3.99 a month. Click the source link to engage in some cross-platform storage.