Now here's the fun part - once logged in, the app brings up all of the books you've bought through Amazon, both electronic and physical, that you haven't entered into Goodreads. From here, the app lets you rate the book out of five stars, which also marks it as read on your Goodreads profile. Strangely, you can't actually add a review from there - you're going to want to log into the site to do that. Tap on the book, and you'll get a Goodreads page with a description and community reviews. There's also, naturally, a "Search in Kindle Store" link there as well. Tap on that and you'll see search results the title. We're sure Amazon is working on more direct links to the titles to make it easier to buy them on-device through the app, but that functionality just isn't here yet.

The app also has a sidebar for quick access to your profile, your friends' updates and a quick link for adding more of those Amazon books you've bought. There's also a link that brings you to your Kindle bookshelf. There's a little "g" icon on the shelf now, which when tapped, launches the Goodreads app. The functionality isn't quite what we'd called fully-baked in at this point. Rating and reviewing has, however, been added to the reading experience. Once you've finished a title, you'll be prompted to give feedback, which is delivered to both Goodreads and Amazon's book pages.

This is all just a first step, hopefully - it's not quite the deep level of integration we've been hoping for since news of the acquisition broke. Perhaps somewhere along the line, Goodreads will begin to feel like a part of Fire OS, rather than an app that sits on the platform, baking better tailored recommendations directly into the Kindle tablet experience.