I love all these designs and follow many of the designers who created them on Dribbble. These are impressive aesthetic achievements, but I'm always surprised that none of these icons are for an app with decent sales. I don't think many, if any, of these are in the top 200 of their respective categories, but there are a number of horribly designed icons in most of the top 20's. I'm a designer and predisposed to nice designs, but always find it a shame that these great works don't get a larger audience.