No, I wasn't aware. Doh, did I just waste my afternoon writing a GUI for PNG Crush?
ADDITION: I just tested pngout and it actually INCREASED the filesize of PNG images saved from Photoshop. So the hell with that. Note that all four images I tested with had alpha transparency; I should have tested without but that's the main reason I use PNG file format (JPG compresses better, before and after zipping the files for distributing my games, for most images without alpha.)
ADDITION: I just tested pngout and it actually INCREASED the filesize of PNG images saved from Photoshop. So the hell with that. Note that all four images I tested with had alpha transparency; I should have tested without but that's the main reason I use PNG file format (JPG compresses better, before and after zipping the files for distributing my games, for most images without alpha.)