This workshop was on the tenth anniversary of a series that has met every year since 1990 in Colonial Williamsburg until this year, and is thus commonly known as the Williamsburg Workshop on Ferroelectrics. The workshop brought together people from a wide range of disciplines interested in ferroelectrics, from theorists working on understanding ferroelectric and dielectric behaviour using the fundamental physics of quantum mechanics, to experimentalists working on understanding the behaviour of ferroelectrics, and those working on design and improvement of applications of ferroelectrics in devices. The advances since 1990 and possible future developments are reviewed. The recent discovery of single crystal piezoelectrics with ten times the coupling strength of presently used materials, which will revolutionize medical imaging, sonar, and other acoustics, applications, has especially given impetus to the field.