Black Powder Media, maker of such iOS games as Vector Tanks and Vector Tanks Extreme, recently had both games unceremoniously pulled from Apple's App Store after mainstream publisher Atari reportedly filed a copyright infringement claim. A cursory look at games in the Vector Tanks series reveal games that bear some visual resemblance to Battlezone, an arcade-cabinet offering released by Atari in 1980.

Read more: The Case of the Vanishing Apps »