Simulation plays a considerable role in validating CyberPhysical Systems (CPSs) as it substantially reduces the costs and risks in the design-testing cycles. Reliable simulations, however, mandate realistic modeling for both the cyber and the physical aspects. This is especially the case in various networked mobile CPSs (e.g., excavation robots and vehicular networks), where costs and risks may become substantial. Our interest in this work is to briefly survey how mobility is modeled in state-of-the-art network simulators. The survey considers representative models commonly used in the literature, their enhancements, and their persisting limitations. It also reports on some recent attempts to integrate network simulators with physical modeling environments.