Books Take Electronic Turn--Alex Hamilton

There are several groups working on these technologies, including efforts at Xerox PARC and MIT's Media Lab. e-paper consists of a film-like substrate that has the ability to render pixels according to the amount of voltage applied. As currently developed, the electronic signal is applied by an external "printer" device to the e-paper film. However, it is not hard to imagine an integrated unit that is no thicker than a book and can download and display information from the Web.