[flaub]

I've been working on a .NET clone of GWT as a side-project for awhile. It doesn't have a widget library yet, but it does have web-mode and development-mode. It works by decompiling MSIL which means you can use any .NET language you want.

http://github.com/flaub/DotWeb

Not much in terms of demos, but the core technology is all pretty much done. Plugins for FireFox (NPAPI-based) and IE work so that you can set breakpoints in Visual Studio. Web-mode does a decent job of optimizing right now because it does method dependency analysis.

[DenisM]

Yo should make a post about it. Make sure to mention how it relates to similar Microsoft's own efforts.