TL;DRBOOX has teased it’s upcoming Picco e-reader.The Picco features a 3.97″ ePaper display and expandable storage.Pricing and availability have not been announced.The BOOX Palma 2 is a great Kindle alternative for readers who want something a little more pocketable. Today, though, BOOX is teasing an even more portable e-reader. The BOOX Picco comes with a truly tiny 3.97″ ePaper screen, and it’ll be offered at an “accessible price point.”We don’t know much about the Picco yet. It’ll come with a front-lit, sub-4″ monochrome screen, and it’ll offer expandable storage via microSD cards. At first blush, the Picco looks quite a bit like the similarly small Xteink X4, which has a 4.3″ display.