I don't own a Kindle because, well, closed platform, right? But if you do own a Kindle, have access to the Kindle app store, and have even the smallest interest in interactive fiction, I would like to point you to The King of Shreds and Patches.
The King of Shreds and Patches is a very good game; in fact, it appeared in my recent top 10 interactive fiction games ever. It is long, well-written, well-researched, not difficult, and a lot of fun. Because of its length, accessibility, and quality as a page-turner, it is perhaps the single piece of IF which I would have most liked to see ported to an e-reader.
So, highly recommended.
I wrote a long analysis of the game here, but you really shouldn't read that until you have finished the game.