Yes fair enough, over sensitive; and I think maybe have a point re; the penny wise pound foolish comment. Thanks for the advices all.
On the subject of changes and away from my original question obviously a large element of the PPL concerns itself with navigation. Obviously the tools we use in that process have moved on and as you say things like Skydemon (which I use with an iPad and find very good) have moved the game on.
Do you think these will become the accepted "norm" in future?