Img2icns - convert images to icons or icons to images

Img2icns now reaches 1.0, It is an application to create icons from images or images from icons.

Features:
-Convert all Mac OS X-supported image formats, including Illustrator and Photoshop files.
-Export icons as .icns files, Finder folders, iPhone icons, or Favicon web icons.
-Attach icons to any file by a simple drag'n'drop.
-Extract and export icons into images from any file.
-Keep all icons ready at hand in the History.

http://img2icnsapp.com