Victor from Clarius Consulting is showing off some screenshots of the next version of the T4 Editor for editing code generation templates used by Microsoft DSL Tools / Guidance Packages.
Per the T4 Editor Website:
"The Text Templating Transformation Toolkit (better known as T4) is a text transformation technology developed by Microsoft and used mostly for code generation by products like Microsoft DSL Tools."
"The T4 Editor developed by Clarius Consulting is aimed at converting this missing experience into a first class one, fully integrated into the development environment, offering you support for colorization of the different T4 template parts, IntelliSense, and design-time preview of your templates."
If you are into creating your own guidance packages or want to edit the templates that come with the Web Client Software Factory, Smart Client Software Factory, Repository Guidance Package, Web Service Software Factory, or the upcoming Prism Project, you may want to look into the T4 Editor.