It would be nice to include a quick totals box under the the Last 5 Orders section:
YTD orders: (number of orders placed)
YTD Sales: ($ value of orders)
You could tell at a glance how your store was doing.
Also a link to the public store would be handy. I would like it to open in a separate tab so I can quickly go back and forth from admin to public to see how changes look.