Vista customization support, IE7 support, taskbar blurring, support for wallpaper management...
New in v6.x:
“Blurred Glass” window borders on Windows XP feature (can make Windows XP look virtually identical to Windows Vista), full support for customizing Windows Vista (Internet Explorer 7 skinning, Sidebar skinning to explorer backgrounds, etc.), advanced animation support in skins, user-creatable skin sub-styles, new configuration program with user customization options of fonts and colors in skins; Release Notes - Last Updated: 05.08.08 (v6.1 Build 55)
New in v5.01:
Improved performance on X64 based systems; support for wallpaper management; taskbar blurring; IE 7 support; various tweaks, bug fixes, and performance enhancements; Release Notes - Last Updated: 03.22.06
Pros: Offers thousands of unique skins to personalize your Windows UI, SkinStudio tool for creating your own skins from scratch
Cons: Weak search capabilities makes finding particular skins difficult, especially after you've amassed a large collection
