Fresh on the heels of a delay in broad availability of Windows Vista, Microsoft confirmed late Thursday that it is also pushing the mainstream launch of Office 2007 to next year. As with Vista, Microsoft hopes to finish the code for Office 2007 this year. The company said work will be completed by October, when it will make Office 2007 available to business customers that have signed up for Microsoft’s volume-licensing program. And, again like Vista, Microsoft plans to ship retail and original equipment manufacturer versions of the product in January. UPDATE: Microsoft has joined a committee that has a key role in the ratification of the OpenDocument format as an international standard.