Read the original post at The Microsoft Expression Blend Team Blog
We’re excited to see that many of you have started creating XAML-based Metro style apps using Blend. Our top priority was to get this early version of the tooling out to you as soon as possible so that you could get a picture of how you will be able to use Blend to create your XAML-based Metro style apps. This first release of Blend for XAML has a few bugs, some stability issues and it maintains a quality level more consistent with a Preview than a Beta.