Not sure where best to ask this ADE-based ePub question, but...
Is there any documentation as to what unicode characters are supported by default on the main (popular) devices that use ADE's portable rendering engine?
I was surprised to find that the desktop version of ADE doesn't support most characters with caron or breve diacritical marks. Is this the case on most eReaders using ADE, as well?
It would be rather silly if I had to embed a font (or create a subset of a font) just to properly display a handful of unicode characters.