I'm a fan of the old Infocom interactive fiction series and have 24 of the works of Infocom neatly shelved. I stumbled across a way to read them on my Kindle Fire HD and decided to share the information in case there are other Infocom addicts watching.
When I first got my KFHD I tried using the Z-machine called Twisty but it doesn't work right on my KF. I gave up for awhile until I found ZMPP on the Amazon App store:
http://www.amazon.com/gp/product/B00...ef=oce_digital
It comes with Mini Zork I. The really good news was when I discovered that my old Infocom games read fine when I sideloaded the <game>.dat file in the ZMPP\Stories folder on the KFHD.
You can still find copies of The Lost Treasures of Infocom. Many of the stories were published in that format.