hey apple, first of all a really nice piece of work you have managed to put up here, this idler has great potential. now to a suggestion:
you know it, and most of us experienced how tedious it is to collect gems/energy balls. i wouldnt mind a collect all button/option. also maybe implementing some kind of grid overlay that moves with the mouse, like 3x3 or 10x10 to collect a certain area of the planet.