Following the launch of Amazon's Android app store, Tech Crunch heard a rumor that the company may also be working on an Android tablet:
Now, unlike the app store, we don’t have any further information to verify this tablet. But again, this tipster nailed the app store part of this news — and knew a couple other tidbits that turned out to be true. So it certainly seems possible that they’re right again.
There have been plenty of rumors that Amazon is hard at work on hardware beyond its Kindle device. But the Kindle runs Amazon’s own software — presumably this new tablet would run Android (for the app store to work).