From proprietary to proprietary?
Worth a read:
Kindle Fire HDX: The Top 5 Apps You Won’t Be Able To Use On The Amazon Tablet On Release Date
Kindle Fire uses a modified version of Android which will limit functionality. If you think Apple is limited, this product seems not one bit better.
Frankly, I am not a fan of Apple, but I am thrilled with my iPad just as most people are. It has really good apps and does what I actually need it to do very well. Also, it seems like anything that is quality that is developed is done so for the Apple products first, then everyone else. So, yeah, there's an app for that.
If I didn't buy Apple, then it would definitely be a good Android device. But, my first experience with Android left a very bitter taste in my mouth, which is exactly what Apple never has done when I've used their product. Just food for thought that you are asking about other stuff, when you know Apple delivers.