[eatmyshorts]

Engelbart was not just "someone". As the other comments in this thread have pointed out, he didn't just invent the mouse. He conceived of hypertext 25 years before the world wide web. He conceived of object-oriented programming. Graphical user interfaces. Watch The Demo ( http://sloan.stanford.edu/mousesite/1968Demo.html )if you want to see a man that was truly ahead of his time.

I think he had a greater influence on the current state of computing than Steve Jobs, Dennis Ritchie, or perhaps anyone in the computing world than anyone except for Alan Turing.

I think it is quite appropriate to morn his death.