[jgoodwin]

One of the very nicest things about the ReactOS project is their build chain -- you can download one project and have a very nice toolchain for building open source software targeting the windows platform, with very little fuss.

Consider the pain of getting a functional Cygwin system able to target non-GNU libraries.

Also, it's just plain fun to use the ReactOS desktop to look at your own desktop looking back at ReactOS ... and drag the ReactOS window down so it does the whole infinite mirror thing.