The concepts outlined in the article remind me of Ubiquity (the Firefox addon), particulary its combination of the speed of a shell with the discoverability and

The concepts outlined in the article remind me of Ubiquity (the Firefox addon), particulary its combination of the speed of a shell with the discoverability and ease-of-use of a GUI. For the few months that I used Ubiquity extensively, I felt like that was what exactly how computer interaction was supposed to work. Too bad they abandoned the app.