I bought DPT-S1 on sale from B&H last summer for $600 after ignoring Sony for many years(rootkits et al). DPT-S1 even with its limitations (PDF only, so Calibr

I bought DPT-S1 on sale from B&H last summer for $600 after ignoring Sony for many years(rootkits et al). DPT-S1 even with its limitations (PDF only, so Calibre is extra helpful) it feels amazing to read on it. It is a combination of hardware (lighter than 9 inch iPad, amazing screen, battery lasts a month) and quite decent software tailored for PDF reading and note taking. I read on multiple devices, iPad Air, Kobo H20, Kindle DX and others. Out of all devices DPT-S1 is by far my favorite for consuming text and gray scale images. I thought of ordering a dev kit for the 13.3 inch screen but Sony really did do a good job on this that no single developer could hope to come close. BOM for DPTS1 is probably around $200, so I envision a future where digital paper could reach mass adoption and cost less than $100. For some reason no company feels compelled to push for this mass adoption.