Print, monochrome, and high-contrast

Hi all, 
We are still lacking any evidence that show images have been adapted for the following three scenarios/use cases:

* Print
* monochrome 
* high-contrast


As per our document:
http://responsiveimagescg.github.com/ri-usecases/#print,-monochrome,-and-high-contrast

Without having any actual proof that there are at least a few sites in the wild that have been designed with, for instance, the Kindle specifically in mind - it's difficult to justify use case 4.4.

-- 
Marcos Caceres
http://datadriven.com.au