I wrote a couple of weeks ago about Microsoft rebranding its SkyDrive cloud storage service to Microsoft OneDrive (link).
BkBlackberry has done a great job integrating cloud storage providers into its base os on BB10 devices. Out of the gate, BB10 supports Dropbox and Box. Now you can add Microsoft OneDrive support to that list with the availability of the Connect to Microsoft OneDrive app (link).
The functionality of this new add on is exactly the same as that of Dropbox and Box. The deep integration means you can upload (automatically) device content to OneDrive. You can access files stored on OneDrive seamlessly on your device.