[protean]

A feature I found useful on StarMap (http://www.star-map.fr/) is when viewing the sky and when the iPhone is put in its wide orientation, the star map flips wide as expected and the menu bars at the top and bottom (now left and right) of the screen disappear. So, while in wide orientation, the only thing on the screen is the star map providing more viewing area. For iNavX, this would provide a useful, larger viewing area of a chart section without sacrificing the buttons and without toggling something on/off.

Working with a raster image such as a BSB chart, I don't know if this can be done efficiently.