Originally Posted by fjtorres
There are occasional glitches, usually with character sets, but it handles the format more or less okay.
.mobi/.prc format is not fully documented so some files can be troublesome.
Not only that: Amazon to retire .mobi format
This is the answer about the lifecycle of propretary, device and manufactor dependent software
So I am glad to see they go with standards now: HTML5 and CSS.