What if your cell phone was no bigger then a pack of cigarettes, but sported a screen that measured 5″ diagonally? Coming later this year, Polymer Vision plans to release a cell phone that includes a 5″ rollable display. Dubbed the Readius, the device will boast all the features of a standard Smartphone, such as high speed Internet, email, MP3 player and more. The E-Ink type display can fold up, requires little juice to operate and can usually be viewed in any type of light. The first iteration of the device will include 16 shades of gray with a color version to be rolled out in 2013. The display won’t be touch screen, but I’m sure we can expect a touch version in the coming years. It measures 4.5 x 2.25 x 0.8 inches, weighs 4oz and because of the low power screen it should enable 30 hours of reading time. It includes an SD memory card slot allowing the user to increase capacity to 8GB.