No, I don't think there is a landscape mode on either the old or new Nooks.
Yes, it has Amasis in addition to Georgia and Malabar for the serif fonts. No, you can't add your own fonts. You would have to embed the fonts into your own EPUB file and sideload.
They don't allow the B&N partition to be visible. You can see the partition for your side loaded books in a folder view. However, you can download your books from the B&N website (US accounts) to your PC. I do that to have a copy of all books for backup.
One nice feature is that you can add your own pictures for screensavers.
|