Nunans,
I have been in contact with Air Nav and Ozrunways about the possibilty of an Andriod version, Ozrunways did not bother to answer, so we are dealing with an Apple ostrich. Air Nav did and gave a good reason they expressed concern about the Andriod software being able to be copied. Whilst I understand their concern I am not going to be held to ransom by Apple, I am going over to Andriod, when the plan for my iphone expires.( 28 days 2 hours and 56 secs time). The current choice is a Samsung Galaxy Note 2, they are big and cumbersome, certainly not for everyone, but the existing Note model is a delight to use and well suited to my professional use.
Thanks Ian for the tip on Oz Explorer I will follow this up.
Allegro 2000