This Symposium follows the highly successful SPIE Smart Materials and MEMS meetings held in Melbourne in 2000 and 2002, and the MICRO/MEMS meetings held in Queensland's Gold Coast in 1999 and in Adelaide in 2001, and gives you the opportunity for in-depth communication with researchers and developers in microelectronics, photonics, nanotechnology and MEMS. These fields are multidisciplinary and exciting developments exist in modeling, materials, devices, sensors and actuators, as well as in the design and applications of these systems.