Which illustrates the narrow US English thinking of most USA corporations. Actually FROM the beginning there was no excuse for such discriminatory laziness. Especially given their dominance in online book selling, their attempt to build monopolies and selling to markets outside English speaking as well as the non-English titles they sold on paper.
It was inexcusable in November 19, 2007 (Original Kindle) and for example Chinese version of Windows 3.1 (version 3.2) was November 22, 1993!
The underlying software fully supported all major languages.
https://en.wikipedia.org/wiki/List_o...ions_by_Amazon
Sorry, but there is ZERO excuse. Your argument MIGHT apply to refusal to support ePubs on Kindle. However NOT supporting eReaders and Apps other than Kindle format might now be grounds for legal action given dominance of the Amazon eBook store. Other eReader makers are not allowed to support Amazon formats using DRM, possibly only the pre-Amazon Mobi. Amazon bought and buried Mobipocket to get Mobi format.