Originally Posted by Gwen Morse
I'm curious about the changes to this. Do you still have to use a separate program to do a mobi=>mobi conversions to update the headers and put in the AISN, or do the more recent versions of calibre now handle this?
I've stopped using the kindle app on my other devices but I might be tempted if I could sync non-amazon books.
You can sync non-amazon books. Just be sure to convert them to .mobi (even from original .mobi files if they're not from calibre or amazon) to .mobi in calibre. Like I said, I use this constantly, switching between my android and kindle.