In her recent decision, Judge Shira Sheindlin did one more service for eDiscovery - she outlined the standard metadata fields to be produced. That was a joy - these fields went straight into FreeEed.
Now it has standard fields from this list, and all the non-standard, or application-defined fields, following the standard ones.
I had a spare hour (not really, I should have been working on the book), but okay, and I added these fields. It never stops surprising me how fast you can add features if only you use the right tools. Look up the code :), it is committed. Now I only need to fill the fields out, but that too should be a breeze.