Not a great app
I agree with WasNeues?, the inability to copy text makes this app useless. Not just for research, etc. but it prevents basic OS X features - text to speech. I enjoy reading, then listening while I read along. It helps with my retention and comprehesion. Because of this app I will no longer be purchasing kindle books if there is an alternative iBook.
Jodscho about Kindle Classic, v1.10.6