Kindle 'Loan this title' question

[tomsem]

I've never used this feature, and am curious about the user experience.

If someone has lent a book to you, is there any way to determine (when viewing it on your Kindle or with a Kindle app):
- whether a particular title on your device is 'loaned' or not
- when the loan period expires

Also what happens after the end of the loan period:
- loaned item vanishes, or
- loaned item can no longer be viewed, you must remove 'manually'

I'm assuming that the look & feel will be the same for library borrowing.

Thanks.