A minor thing; a history search feature would be nice (Tools -> History), that or a date field search in the global search to see what things I researched saturday 9 weeks ago, or to create a edit history log of a certain topic.
I could make do with select all, copy and paste to TextMate and search from there, but unfortunately it only copies the name to the clipboard, not the date. The same issue occurs when copy and pasting regular search results.
Now I just scroll back to the date.