reading Ibooks with Braille displays
What I notice is that when I move in and out of the edit field where the text is displayed my place gets lost. It seems to bean iphone feature to move the focus of the edit field to the beginning or end of the text. If I touch the screen with my finger the place if not lost. The panning buttons are the two tiny buttons just under the braille display. Space plus k puts the device in help mode to learn the key strokes.
In Read2Go there is an option to read by page or section which can be helpful in keeping one's place.