The ER600 is an e-book reader, made by China's Matsunichi. It is available for customization (Matsunichi will not sell these directly) - options include a 5" or 6" E Ink display, touchscreen, 3G/3.5G cellular modem, Wi-Fi and Bluetooth.

Matsunichi ER600 photo

It includes an MP3, microphone and speaker out, 512Mb to 2Gb of memory and an SD card slot. The reader supports TXT, PDF, HTML, FB2, ePUB, PRC, MOBI, JPG, GIF and BMP file formats and includes an RSS reader and a web browser.

E Ink display info: 
5" or 6" E Ink, optional touchscreen
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ynvisible ink kit - create your own electrochrommic printed displaysynvisible ink kit - create your own electrochrommic printed displays