ownCloud uses its own server-to-server sharing capability to bypass all the Web interfaces that trip up seamless file sharing across silos.
Anybody who says there’s nothing new under the sun–or clouds–ought to read this story.
Cloud storage and collaboration service provider ownCloud (yes, with a lower-case “o”) has found a way to sync up files from all over the place–from the cloud, to enterprise silos, to personal connected storage devices, to other disparate places–and make them easily available and sharable using its own cloud (hence, ownCloud) common file access layer.