I wish Kobo would get a better system for this.
I sideload all my books and so I only sync when I wish to upgrade my firmware. But as I don't want all the kepubs I have purchased from kobo (over 100) to download onto my Touch I need to manually delete them. Then I go back and undelete them so that kobo doesn't suddenly change the rules (like they would NEVER do that would they!!
) meaning I might lose access to these books on my phone, ipad etc.
It's a real pain...