There's a small glimmer of hope for the seemingly doomed dream of color electronic paper. E Ink, which helped pioneer ePaper by providing the technology for Amazon's Kindle, announced today that it's finally developed a display that can show up to 32,000 colors. Dubbed Advanced Color ePaper (ACeP), it's a huge leap above the company's aging Triton tech, which could only display around 4,000 colors. Basically, it'll be clear enough to be practically indistinguishable from color printed onto real paper. But don't get your hopes up for an e-reader with ACeP just yet -- for now, E Ink is positioning it for in-store signage as 20-inch panels.