Not clear how compatible it is with the Amazon or Sony e-book stores.

至于和亚马逊或者索尼的电子书商店是否兼容，还不清楚。

youdao

But you also have the Nook from Barnes and Noble and the e-reader from Sony.

VOA: special.2010.12.20

Waterstones had previously sold Sony e-readers which had received much less promotion.

BBC: Kobo Glo

The first thing you'll notice, once you get past the space-age design, is the fact that the camera really does feel like a rebranded Sony NEX device slipped into a new shell, and as such, it takes those Sony e-mount lenses.

ENGADGET: Hasselblad Lunar mirrorless camera hands-on Hands-on

As well as being used for in-store signage, E Ink's technology powers Sony's e-book reader, and in April, Seiko, a watchmaker, unveiled a digital watch built around an E Ink display.

ECONOMIST: REPORTS