This build is not much different from Build 4008, although by this point, virtually all references to Windows XP had been removed, including the old boot screen, which was now replaced by the actual Longhorn boot screen.
The copy of this build that is widely available has a corrupt INSTALL.WIM, and as such, will not install properly, due to the damaged portion being the WinPE (Windows Preinstallation Environment). It is possible that a working copy of this build may be released some day.
