our first interactive fiction active content for the Kindle (all models) is available in the Kindle Store:
Insight, created by Jon Ingold, is a science-fiction detective story. A genetic designer from Mars is accused of committing the planet’s first murder. But you can prove it?
infix, the engine powering this release, is a native Z-Machine interpreter for the Kindle and fully suports z-code version 3, 5, and 8.
It also contains user interface features and enhancements specifically designed for the Kindle.
more infix-powered games coming very soon - enjoy!