Short of appearing on Kindle products, since Amazon bought Goodreadswe haven't seen much new in the application. That's all changed, however, as the iOS apphas gotten an overhaul.
As TechCrunch notes, upon opening it you're greeted with a news feedthat's filled with your pals' activity (including books reviewed and read), and you can like or comment on it as such. There's a new navigation pane at the bottom of the application, too, that offers quick access to the home screen and a barcode scanner for adding tomes to your "to read" list, among other things. What's more, creating a custom bookshelf for, say, your list of favorite tween-zombie-romance-nonfiction books is apparently pretty easy now as well. There isn't an update for the Android version just yet, butwe've embedded screenshots after the breakif you want a preview of what the app'll look like on your iDevice.