Hi Julie, very interesting post, thanks!
I'd imagine there must be. I always find it curious when people say they want the Kindle backlit, when we've spent all this time reading books without one, lol. I did notice, in the first review on the Amazon page, that the guy said he'd got both a Kindle Touch and Kindle Fire, because the Fire hurt his eyes when reading. Each to their own, though
As a tablet, from what you say, it sounds great, and I'd definitely consider getting one for other uses