We’ve just released the 4th Beta of KDevelop4 and its coming along quite nicely.
This one even compiles on Windows (using MSVC9 aka MS VS 2008) and also is able to load projects. I haven’t been able to try out more things, like file-parsing or code-completion. One thing that won’t work for example for sure is building any cmake project as we don’t yet have any support for nmake.
So the Windows port is not ready for public consumption (as opposed to Beta4 on linux) but it does make progress again.