Ballistic is pretty much a “what you see is what you get” case. Designed as a traditional sleeve with a metal zipper on the top, there is just enough room for an iPad or an iPad 2—with or without Apple’s Smart Cover—in the main cavity. On the front of the pouch is a small zippered opening that’s flat, bulging out if you insert a charger, earphones, or other small accessories. Other than that, the only extra space…