Amazon updated version of Kindle Mac OS X, Which has added a lot of highly requested features such as Annotations and highlighted text, Thanks to support for technology Whispersync-Amazon-sync this will allow us to keep in sync on any device where you use Kindle.
It has also been redesigned, making it look much simpler and less overloaded, which has served to speed up a little application. So we get a new multi-column view, but probably the biggest benefit of this redesign takes the form, which now allows us to search through the text of any book.