I've used revelation on all my computers for quite some time, and over time I've accumulated differences in these files. A password that was written on my laptop's revelation, another was written to my desktop computer at home ... etc
Now, with the advent of cloud storage services like Dropbox, Ubuntu One, etc. I've managed to use a single file for my password-storage tasks. However, I still find myself digging into old files looking for a password.
As a sidenote, my revelation files are big, with password for websites, different servers, etc
I've looked into all menus in revelation and have not found the ability to compare two revelation files to see the differences. It would be a terrific functionality to be able to do this and move entries from/to different files.
It does sound like a nice feature to have.