Here is an iPhone Application Icons package, which will help each iPhone or iPad application developer get their GUI in order. The icons from this package can be used in navigation, tab bars and toolbars of iOS applications.
This software is not reviewed yet.
Toolbar Icons for Windows, Mac, Unix. Design service for custom icons. When you purchase this icon set, you can use these icons for commercial software applications and web sites.
Windows 8 Icon Converter is a wizard-style icon maker for producing attractive Windows or Mac OS icons from an image. Many graphic formats are supported. Output customization includes options such as icon size, color depth, and transparency.