TechCrunch is reporting that it has seen a prototype of a next-generation Kindle Paperwhite that features a flush, glass screen and a more angular design that's more in line with Amazon's recent Kindle HDX tablets. However, the marquee feature will apparently be a new, 300 ppi screen that's higher-resolution than any other E-Ink reader on the market today. The new Paperwhite, reportedly codenamed "Ice Wine," is expected to utilize that improved screen with improved typography — including a new custom font designed specifically for the device and perhaps the ability to reflow text with hyphenation.