Windows Vista isn't the only forthcoming Microsoft software for which Amazon has apparently pre-announced availability. The online retailer is also taking pre-orders for Microsoft Office 2007, and has listed the day the product will be available as 30 January 2007, the same date as for Windows Vista.

Yesterday Microsoft refused to confirm the exact availability of Office, continuing to maintain in a statement through its public relations firm that the system will be available to business customers by the end of the year, and consumers in early 2007.

On Tuesday, the company also toed the party line on Windows Vista availability, repeating what it has said since March: Vista will be available to business customers in November, and consumers in January 2007.

Microsoft's comment on Vista followed Tuesday's news reports that Amazon was taking pre-orders for the OS (operating system) and had not only listed the software's date of availability, but also pricing, which the vendor had not announced yet.

If Amazon's listings are correct, it seems Microsoft plans to ship the consumer versions of Windows Vista and Office 2007 simultaneously at the end of January. Both products have been delayed from the release dates the company originally targeted for them. However, Microsoft has said for some time it would release the two products together, and in March even purposefully pushed Office 2007's release date into next year so it would ship at the same time as Vista.

An Amazon listing for Office 2007 can be found here.