CMIS (Content Management Integration Service) is aiming to be the new webDAV. Is there a possibility to either mount a CMIS source in Linux or integrate it into Nautilus?
There is no convenient such tool right now, so I started developing CmisSync.
It will keep a local folder synchronized with your files in the CMIS repository. It allows you to browse your CMIS documents offline. It is not finished yet. Open Source.
If you don't need offline access, you might want to try Adobe Drive, which features a CMIS connector. They say it only allows "basic access". I haven't tried it yet because it is not available for Linux. Proprietary.