iSupply performed a teardown analysis on the Kindle 2011, and according to them the 6" E Ink Pearl display costs $30.5. This is the most expensive component on the Kindle - which costs $84 on the whole (BOM and assembly). This means that Amazon is actually losing $5 on each ad-supported device sold - which cost $79

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ynvisible ink kit - create your own electrochrommic printed displaysynvisible ink kit - create your own electrochrommic printed displays