A company called Polymer Vision, which spun out from Philips in 2006, has come up with an ingenious solution. It’s called the Readius (pictured) and it’s an E Ink display that’s similar to the Sony Reader, except for one important factor — it’s rollable.
You can roll the 127mm (diagonally) E Ink display into a compact form factor that measures 56mm wide, 100mm tall and 21mm deep, so it will fit into a jacket pocket. The Readius can display 16 shades of grey and it has 4GB of on-board memory, so you can store all your books, emails and PDFs on it. It also features USB, as well as GPRS/EDGE and DVB-H connectivity, meaning you can download data wirelessly, too.