Tetris is the cold-war-story of software
There was just a BBC-documentary about Tetis on televison - and heck, that's the real story of cold war considering software.
Not only because the original inventor didn't get much money out of it due to the political system, but also because of the fighting about rights for Tetris. Nintendo won in the end against Atari - and it was about a concept. And the original inventor ended up working for Microsoft...
... a little bit I feel pity for him.