Ferromagnetic semiconductors (FS) with high Curie temperatures are of great interest for applications in spinbased, multifunctional devices. In particular, dilute magnetic semiconductors (DMS) have been created by doping semiconducting host materials with magnetic transition-metal ions, yielding magnetic ordering transitions near room temperature. [1,2] The ferromagnetism of DMS is currently thought to result from a local anti-ferromagnetic coupling between carriers (e.g., holes in (Ga,Mn)As) and the 3d (Mn) magnetic moments, leading to long-range ferromagnetic ordering. Nevertheless, concerns have been raised that clustering of randomly placed magnetic dopants leads to an inhomogeneous ferromagnetic state. Furthermore, DMS remain controversial from both experimental and theoretical points of view.