Unfortunately, Redmond has not met that deadline and boxed versions of the productivity suite are currently unavailable through the company's online store -- though, some downloadable copies are present. Among the offered digital editions are Office 2007 Home and Student, Professional, and Ultimate for Windows.
According to Computerworld, Microsoft says Office will be available "soon after Jan. 11." In the meantime, various copies of the Office 2007 software can be found online. While those probably contain the "unkosher" XML feature, it was noted last month that existing copies of Office 2007 would remain unaffected.