This is a collection of Eclipse plug-ins that help you work with .NET. If you used tools like Emonic, this is something that will be helpful. Current functional tools include NUnit and NAnt support. Both tools work like their Java equivalents.
Build tool using C# scripting language
.Net extension methods, attributes and tools to make you more productive. Write less code, write less bugs.
Dr. Micheal Kay: "Saxon 8.7 is the first release to be released simultaneously by Saxonica on the Java and .NET platforms." MDP: Mission accomplished! Saxon for the .NET platform from Saxonica is now available and supported via the http://saxon.sf.net
CRUD generator for WinForms
In typical business application, you need a lot of monotonous CRUD functionality. You need list of clients and ability to view/change details, add new client, add/edit orders, edit product/services/tariffs catalogs, ets, etc. This generator takes DSL description of all these domain entities and outputs ready-made WinForms functionality, plus SQL script for database deploy and plus ORM interconnection between generated C# partial classes, forms, and database. In my practice, I saved up to 80% of labor writing some applications. (And note that generated code don't need tests.) Advantage is less when we need write more custom code, for example, for sofisticated processings, complex validations, reports and inter-software integrations. Ideologically it is a C# analog to 1C. Though very limited.