David, a couple of questions about using the plugin with larger ebooks:

1. If you need to import annotations on a book a second time (because you added more annotations after your first import to Calibre), I assume the best way to handle that is 'delete' all the existing annotations from the details view in the book, and then run import again?

2. This one is weird, a special case question. :-) Say that you have a book that you read a LOT, it's huge, you add annotations all over the place. And then you want to transfer the book, with the on-device annotations, to another Kobo device or app. Is there a way to do that (even as a manual hack) with a sideloaded book not purchased from Kobo? (I realize the simplest solution would be: if you want to read the book with notes on multiple Kobo devices that bad, just buy the book from Kobo in the first place. Problem is, I already owned some of the books that I want to do this with before I discovered Kobo devices :-) ).