October 2016 update: DEVONthink now has native support for syncing, so I'd recommend using that instead.
A quick pointer to a couple of resources for those of you looking to sync DEVONthink across multiple computers:
- Jason Schafer’s post is probably the most comprehensive, and includes a use case for databases so large they don’t fit well on Dropbox.
- Andreas’ MOSX Tumblelog post is probably the most useful for regular users.
Keep in mind:
- The former uses DevonSync (10 USD) only for the large-file use case. Both include options for simply using Dropbox (free).
- You still can’t open two instances of DEVONthink at the same time, and between closing it on one computer and opening another instance on another computer, you have to allow for upload/download time on Dropbox.