Returning back to the issue of that unnecessary front-lighting which requires a special light distributing layer.
Read this about the new android Onyx Boox i63SL:
http://www.the-ebook.org/?p=18124#more-18124
It says that the contrast is noticeably reduced because that light distributing layer is "milky"
Ha! It is written not in English. At least some letters look like Greek

Anyway, Google Translate says:
Молочная подсветка -> Dairy lights
Which is pretty funny. Even though perfectly correct.
It shows that automatic translation is almost impossible.
So, yes, I demand an option from the manufacturers: no lighting, and buttons !!!