Cast your mind back to IFA and you might just recall the appearance of a dual-screen mash-up device with no proper branding or launch date. Well, it so happens we've been in touch with the mystery phone's maker, Yota Devices -- a spin-off from the more established Russian telecoms company of the same name -- and we're assured that this is much more than a whimsical concept. The Android-based handset has now reached fully working prototype stage and bears a Gorilla Glass 4.3-inch 720 x 1,280 LCD display on the front, a 200dpi E Ink rear display of the same size and toughness, and a dual-core 1.5GHz Snapdragon S4 processor with 2GB of RAM and at least 32GB of non-expandable storage. There's even LTE, a 12-megapixel rear camera and a 720p front-facer to round things off, all housed in a 140 gram body that is less than 10mm thick. If things go to plan, the YotaPhone should arrive on Russian networks in Q3 of next year for an untold sum of money, and Yota says it's "in talks" with certain US and European carriers too. Read on for more.