This demo was of a plugin for Eclipse for using the Molhadu source code repository. Instead of treating all files a s either text or binary, the MolhadoRef system knows about the structure of source code and can detect APIs and distinguish them from other source code. The system can then distinguish refactorings of the API from general code edits, and be much more efficient in automatically merging concurrent changes.
The demo included a couple of editing round trips with automatic merging of changes that would have been conflicts in CVS or SVN.
Very nice, but it does still have some way to go before it is usable in regular projects, most important the lack of tagging and branching in the Eclipse plugin.