Iconfactory has announced the release of IconBuilder 8.1, the latest update to its professional icon creation utility for Mac OS X. Version 8.1 adds full support for building Windows Vista icons including updated grid files and Photoshop actions. It also includes support for larger icon sizes in Mac OS X, multiple resolution TIFF files and a host of other updates and bug fixes. IconBuilder 8 is available now for Mac OS 10.3.9 or later for US$79.