Well I went and checked out the BG-E11, comes with two trays (one for LP-E6s one for AA batteries which was the one pre-installed) and also a pouch looks like it is to "store" the tray that you are not using.
The store wanted $379 for it and would not budge, which was $50+ more than my B&H order so I passed. They had two in stock at their store (West Palm Beach, FL) if anyone wants one for that price.
The grip has a real solid feel and the buttons are a perfect match to the ones on the body. The joystick is very well positioned and (for some reason I didn't know) it also has the M.fn button on it too.