Are iBooks bookmarks, highlights & notes stored in the cloud under the account that's been setup on the 'Store' tab on your iPad Settings menu, or the account on the 'iCloud' tab?

Okay. Found this out while doing some research :) http://support.apple.com/kb/HT4059 says "Wirelessly sync your Bookmarks, Highlights, and Notes with your other devices using your iTunes Store account by tapping Settings > iBooks > Sync Bookmarks > ON." So it's using the account on the 'Store' tab. And if someone else sets up their App Store using this same account, they would end up getting my bookmarks, highlights, notes, etc. On second thought, this seems to basically mimic real life books. If you buy a book at home and highlight it, make notes in it or bookmark it, some family member picking up the book (i.e. analogous to using the same App Store account), will see those personalizations as well.