Or as a poster on the IXDA put it: “Happy Birthday Mouse”. There is a great BBC article up about it. Designing Interactions is also worth checking out. What’s amazing is that since the mindblowing presentation that gave Doug Engelbart a standing ovation from the audience, not much has changed. (See the video yourself. 40 years on, and the screen may be more GUI, but wouldn’t you think we’d have moved on a lot more?