Not sure what you're looking for here, but we use the market (now Google Play) on our Kindle Fires and my Samsung Galaxy SIII.
It's tied to my Amazon acct when I buy mp3s or books on the Audible app. Anything I download (free or paid) can be pushed to every Android device I have registered with my Amazon acct, so my songs are available to both of my kids' Kindles, download of books in games can be shared on each Kindle Fire, etc. This prevents me from having to pay for games, music, apps, etc. more than once.
That help??
via Samsung Galaxy SIII