Plan 9's UI works in a quite similar way. I'm not up to date on my history of those systems, but I wouldn't be surprised if there is heavy cross pollination bet

Plan 9's UI works in a quite similar way. I'm not up to date on my history of those systems, but I wouldn't be surprised if there is heavy cross pollination between the two. Additionally, the fact that the writer of this post mentions Oberon's zooming user interface and the Canon Cat means I have to encourage anyone interested in this topic to read this wonderful book: http://www.amazon.com/The-Humane-Interface-Directions-Interactive/dp/0201379376/ref=sr_1_3?ie=UTF8&qid=1380936948&sr=8-3&keywords=raskin http://www.amazon.com/The-Humane-Interface-Directions-Intera... --- The article linked to at the very beginning is not available on the original site. Here is an archive.org link: http://web.archive.org/web/20090416033922/http://stevenf.tumblr.com/post/94591835/warning-a-long-rambly-exploration-of-the-state http://web.archive.org/web/20090416033922/http://stevenf.tum...