KSync
Ran across this yesterday while looking for more Open Source PIM stuff, and it seems like it would make a logical front end to the versioning system I described on Wed. The more I think about it, so long as we can prescribe that all data be stored in XML format, I don't see why good-ol CVS can't do the job on the backend, it just needs some set of "wrapper" applications to make the interface a lot more transparent to the end user. I hate it when big projects start to seem approachable, 'cause then I find myself working on them. Well, sanity was nice while it lasted.