The CodeBetter TeamCity guys were kind enough to install the Silverlight runtime on the build server a while ago, which means that NGenerics now has an automated Silverlight build.

If you're interested in trying out NGenerics on the Silverlight platform, you can find the assemblies under NGenerics Trunk/Artifacts.  Be sure to let us know if you find any bugs/pain points/things that can be improved on this particular platform.