When BodyGuardz’ The Garrison for the new iPad ($50) showed up at our office, we knew it looked familiar: it’s almost identical to STM’s Skinny 3, and most likely from the same factory. The hard plastic shell is virtually indistinguishable, it has the same fabric tab to hold the case shut, and it even shows signs of the interior magnet being replaced post-manufacturing to properly lock and unlock the new iPad—something we noted…