This past March, we wrote about the funny subtleties of safes disguised as household objects like rocks, flower pots, cd cases and cans, designed and manufactured by Southwest Specialty Products.
Tobias Wong and Chelsea Briganti are now (tongue-in-cheek) trying to get their share of the market, introducing an iPad case disguised as a used document envelope, complete with an interdepartmental mail background for the home screen. This is probably less to hide your iPad from thieves, and more to keep yourself from being identified as one of those 'annoying early adopters' while playing "Plants vs. Zombies" or "Harbormaster" in public.
Instead, you'll just seem crazy as you poke and swipe the surface of what looks to be some kind of unopened letter.
(For those of you who are actually considering whether or not this will provide any protection: yes, it will. There's a hard case inside.)