What I would just DROOL over is the capability to manage your collection in a functional program like this or Calibre, with the added feature of being able to print out your catalog with book cover art, book description, etc. Like you can do with Itunes for a music collection (and many other programs).
The only solution that I have found, that is not quite so elegant, is one posted on this forum to export the ISBN (works for most books, but not all on Amazon) from Calibre, then import into library thing, then do some customization, add in the missing stuff for books that are not in their database, then print an OK looking catalog with messy page breaks.
This is really nice work. Thanks to you and all the developers who share there skills to help others. Just adding my most desired software function as requested.