That is cool! Is that opened via a link like the Opened, Answered, Closed Etc. across the top of the default installation? Really What OS Ticket is missing is the merger of the two ISanswered and open as an ALl Open tickets Option as well as an ALL Tickets view.
The layout of that image you posted is awesome BTW...
Stay tuned in the next few days I have some nifty MODS of my own I am posting.