SUA Deprecated In Windows 8?

An anonymous reader writes "I just tried to install Subsystem for UNIX-based Applications (SUA) on Windows 8 Preview and found that it's marked as DEPRECATED: 'Subsystem for UNIX-based Applications (SUA) is a source-compatibility subsystem for compiling and running custom UNIX-based applications and scripts on a computer running Windows operating system. WARNING: SUA is deprecated starting with this release and will be completely removed in the next release. You should begin planning now to employ alternate methods for any applications, code, or usage that depend on this feature.'"