opa, boa noticia pra quem trabalha com Eclipse:
- Increased Interoperability: Eclipse will contain functionality that will help Java Developers build Silverlight applications that work better with Java Web Services using REST, SOAP, JSON and other standards.
- Silverlight Project System and Silverlight Compiler: Eclipse will contain both an advanced project system for creating Silverlight applications and media experiences as well as a compiler for packaging Silverlight applications for deployment.
- XAML Editor & Preview with code hinting and code completion: Eclipse will contain an advanced, standards-compliant XAML editor with code hinting and code hinting features which helps detect and correct coding errors.
- Full compatibility with Microsoft's Development and Design Tools: The XAML and Silverlight projects created by Eclipse will be fully supported by both Microsoft Visual Studio and Microsoft Expression Studio tools.
tá aqui o link: Eclipse Tools for Microsoft Silverlight