[spersephone]

We have the loans in Australia (not from Kindle) too, depending on your library. They're epubs usually. I've found the books stay in my collection after I've run them through Calibre, but they automatically disappear from the Adobe Digital Editions program, or I tell them they can be returned. The system doesn't quite work the way I expect it is meant to, but it's brilliant. I put them on my Paperwhite to read as that's my preferred reading device now.