One feature I really need in DevonThink 2 is bi-directional synchronization. My primary data source is actually shared between Windows and OS X machines, and I keep it on a Windows shared folder.
Right now I can’t use DevonThink as my primary document manager because when I make changes (move docs to another folder, merge documents, rename them etc.) the changes only happen in DevonThink and are not synched back to the Windows shared folder. So a bi-directional sync would be especially useful for me. Any prospects of getting this feature? I am sure I am not the only person to request this.