Diluted magnetic semiconductors attempt to merge the tunability qualities of semiconductors with the collective behavior of ferromagnetism. Making such materials requires a close collaboration between materials science, devise physics, and theory. The archetypical DMS is (Ga,Mn)As in which Mn is incorporated in GaAs and the induced charge by the Mn mediate ferromagnetic coupling between the local moments of the randomly placed Mn. The development and understanding of these materials has not only lead us to a better understanding of this simple version of ferromagnetic ordering, but also to novel physical effects such as tunneling anisotropic magneto-resistance, coulomb blockade anisotropic magneto-resistance, among others. Within the paradigm of (Ga,Mn)As we have been able to model and understand current induced magnetization dynamics, tunable Curie temperatures, anomalous Hall effect, magnetic anisotropies, and anisotropic magnetoresistance properties among others. In this talk I will describe an overview of these materials, some of the current device capabilities through new magneto-dependent phenomena. I will also address one of the main concerns of these materials: is there a limit to the Curie temperature and what are the best strategies to increase it to room temperature and beyond.