from Robert Hess
As hard as it might be to believe, not everybody is using Visual Studio as their development platform. Then what if they want to develop a Silverlight application? Is notepad their only option?
Fortunately not. Vijay Rajagopalan did a session at MIX09 earlier this year which shows how we’ve been working hard to provide interoperability support for Eclipse users that not only allows them to use Eclipse as their development environment, but also allows them to integrate their Silverlight applications into PHP, Ruby, or Java.
more here