Imagine if every interface was open source. Any of us could modify the software we use every day. Unfortunately, we don't have the source.
Prefab realizes this vision using only the pixels of everyday interfaces. This video shows using Prefab to add new functionality to Adobe Photoshop, Apple iTunes, and Microsoft Windows Media Player. Prefab represents a new approach to deploying HCI research in everyday software, and is also the first step toward a future where anybody can modify any interface.
Fitts's law (often cited as Fitts' law) is a model of human movement in human-computer interaction and ergonomics which predicts that the time required to rapidly move to a target area is a function of the distance and the size of the target. Fitts's law is used to model the act of pointing, either by physically touching an object with a hand or finger, or virtually, by pointing to an object on a computer display using a pointing device. It was proposed by Paul Fitts in 1954.
These tiny reflective devices can store thousands of bits and look like a much better version of QR codes, and could even replace RFID for nearfield stuff.