An unstable version is currently available via svn. Since i have no testers i would appreciate some feedback from you :)
If you want to compile it just do this:
$svn checkout https://simdock.svn.sourceforge.net/svnroot/simdock/tags/unstable
Simdock now depends on libwnck-1.0, libgconf and libx11
If you have problems compiling just contact me.