conq writes "BusinessWeek has a piece on the latest advancements in eBooks, and how this time they might just take off. From the article: 'Portable devices are becoming lighter and more appealing. The most important step forward may be in digital ink, the technology used for displaying letters on a screen. A small company called E Ink has created a method for arranging tiny black and white capsules into words and images with an electronic charge. Because no power is used unless the reader changes the page, devices with the technology could go as long as 20 books between battery charges'."