I would kill to have something like this on my iPhone - instead of paying for shabby flashcard- and to-do apps. How a pocket computer that you cannot program yourself is considered a "smart" phone is beyond me.
This was a great presentation. I'm going to try my hand at creating something akin to a modern Hypercard. There are a few (seemingly) abandoned open source projects that I've seen which I may be able to continue, but we shall see. Either way, it seems like a fun project. Might start small with some implementations of the idea that are task specific.