One example of such texts where the reader could change the story every time he starts reading is Citadel of Chaos by Steve Jackson. Although this book may be considered as those-meant-for-kids-only books, its idea of a fantasy game book shows multi-linearity. In this book, every time you start a new story, you will most likely have a different story and even possibly a different ending.
The only disadvantage of this book is that given the wide array of choices for the reader to move around, turning the pages to and back is a big nuisance. If such texts are to be "hyper-textualized", then readers would be given the ease of moving around the text by such a click of the mouse.