Steven Sinofsky posted a new blog entry about how they have improved the accessibility in Windows 8

Windows 8 is a product we design for an incredibly broad spectrum of people around the world. One of the areas where we have worked to deliver an even greater level of innovation is in ensuring that Windows 8, particularly the new Metro style experience, is accessible to everyone regardless of their physical abilities. In this post we will talk about the engineering work that goes into the features we refer to as “accessibility” – though as you will see, many of these features are broadly applicable and just make the product better for everyone. If you are interested in Microsoft’s overall efforts in accessibility and related topics, please be sure to check out www.microsoft.com/enable. This post is especially important for developers building Metro style apps for inclusion in the Windows Store, as we are asking you to test the accessibility of your application prior to submission. I encourage folks who have never seen these tools in action to learn about them through the video. The upcoming beta will be a great chance for everyone to experience the product.

An important note. With the next public release of code (later this month) we will see a significant improvement in the capabilities described in this post, but we still have work to do between beta and RC especially with regards to working with the latest releases of third party tools. I just want to make sure folks know that this post talks about improvements in the next release as well as functionality that will still be improving as we get to the release candidate.

  Windows 8: Enabling accessibility