I am looking to buy a new tablet, and unfortunately an iPad is quite a lot more expensive than I am able to afford. I was wondering if the new Kindle Fire HD supports global, runs smoothly etc, and if not what other tablets you could recommend which are around the same price range and can run global smoothly?
The Global update is not supported on Kindle, and neither will future updates. The developers are reviewing the demand for a Kindle supported version, and that will ultimately decide the fate of Infinite Flight on the Kindle.
It, unfortunately, does not. Amazon tablets do not get the Global update.