NLog 2.0 release is focused on adding support for new platforms (Silverlight, .NET Framework 4, Windows Phone 7.x), improving logging architecture and manageability and addressing most frequently reported user issues.
Why Windows Phone 8? On Windows Phone, PhoneGap is incredibly flexible. The API is implemented inside a user-control. This means that you can easily add a little PhoneGap to an existing WP7 app, or if you choose, you can add Silverlight controls to your PhoneGap app.
Blacklight is a UX focused code sharing project. Microsoft has released a bunch of technologies that allow designers and developers to work closely together to make beautiful software. This project is a collection of controls, samples, visual assets and ideas that has been put together by User Experience designers and developers to both show you what the technology is capable of (from a UX point of view), and give you code and samples that you can use in your own projects, completely free of charge (see the License tab above).
One word of caution: the "Typemock Isolator for Open Source" edition is only free to use for developers of open source projects. For Commercial users of any open source project that uses Typemock , it is not free...