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"e ink" is a trademark of the E Ink Corporation. Other vendors of e-paper displays can't use the same name, regardless of what type of display technology they use.

https://www.youtube.com/watch?v=GksPX8qi4fQ "E Ink Booth Tour at CES 2014, Sony DPT-S1, Smartwatches, wall clocks and more"

This device is less symbiotic to an e-book shop than any simple e-reader.

From the youtube link posted above it looks like e-ink.

The store was killed on the 20th. :/