http://www.androidauthority.com/apple-samsung-patent-war-69575/
a related article about apple's patent lawsuit against samsung...there is a video there from 1994 about a future tablet, which is hurting apple's claim that samsung stole their tablet design
excerpt from the article:
The design in question is a rectangle with rounded corners and a big glass screen, which, for anyone with some sense, doesn’t sound like an awfully original concept. However, as today’s legal system is more complicated than some of us can understand, the legal heads at Apple really had a shot at proving they had invented the whole “rectangle with bla bla…” concept.
That is before this video surfaced, showing off and, hopefully definitively proving, that Apple didn’t, in fact, create a groundbreaking and innovative design concept with the iPad, but rather took something pretty simple and straightforward and refined it and gave it polish.
