Amazon just dropped us an email to let everyone know that their Kindle Fire HD is a worldwide best-seller.  Yeah, like that’s a surprise to anyone.

In all seriousness, the Android-based tablet has become the retailer’s  #1 best-selling product across all of Amazon worldwide. Also, today sees the roll out of a an over-the-air update to add in the Kindle FreeTime feature that lets parents control what a child is able to see on the Kindle Fire HD as well as how long they can use the tablet.

Other notable Amazon and Kindle Fire HD highlights:

• Kindle Fire HD offers deep integration with the world’s best content ecosystem, offering over 22 million movies, TV shows, songs, apps, games, books, audiobooks and magazines.
• We offer the best cross-platform interoperability – the content customers purchase from Amazon isn’t just available on Amazon devices, it’s available on the largest number of devices and platforms, so customers can access content anytime, anywhere.
• We increased our exclusive content selection and the Kindle Owners’ Lending Library to more than 200,000 exclusive titles. We also expanded Kindle Owners’ Lending Library to the UK, Germany and France

Looking ahead, Amazon is definitely optimistic about their larger Kindle Fire HD 8.9, calling it the “best tablet we’ve ever built.”  Priced at $299, that one goes on sale in a little under a month’s time.