Atari Labs in particular brainstormed a lot of things, some more on-target than others, so there are quite a few wrong predictions as well. It's interesting that it even existed, though. The idea, today, that a videogame company could host a basic-research lab like Bell Labs, MSR, etc., headed by a prominent researcher (Alan Kay was near the top of his fame at the time) seems almost absurd. Google hired Peter Norvig to head up a corporate research lab, but it's hard to imagine Ubisoft or EA doing something like that.
My favorite not-implemented Atari Labs memo, fwiw, was Brenda Laurel's suggestion that they design games for dolphins and humans to play together: http://www.kmjn.org/snippets/laurel82_dolphinvideogame.html