Sync Framework For Automated File Backup/Centralization

This somewhat ties into my earlier point about a Developer API, but its such a mainstream need/use it really could do as part of the application proper. Obviously a primary use of Wuala is backing up personal files, however, given how often personal data changes (and that while Wuala may indeed be super-awesome, most files perform better on a local disk rather than the integrated filesystem. Of course, if Wuala were to make its mounted fs bi-directional, users could take advantage of existing sync frameworks like Conduit or HUBackup.