In case you missed it in the other thread, you CAN sort your search results in the binder by date modified.
do this already in Mac or Windows 3 beta. See here: [url]Search, Sort, and Navigate to Documents by Date Last Modified]
As far as seeing the date/time of last edit and so on, I think the answer there is to do your search, get the results into the outline view with the columns you want to see, then open up a second editor. Keep the outline view up and use it to navigate between the documents instead of the binder (you can even close up the binder for this). I think some of the built-in “Layouts” set this up for you automatically. You won’t lose the list in the outliner in this case (I have not tried this recently, so I’m going off of memory here).