Endovascular repair has emerged as a very important treatment modality in the management of a host of serious and relatively frequent thoracic aortic diseases. This minimally invasive approach is certain to revolutionize the entire field of thoracic aortic surgery in the near future. The technologies, however, can still be considered as a "work in progress." Future refinements, which should be available within the next 1 to 2 years, will address some of the most important needs as yet unmet today: lower profile (<22 F) delivery systems, greater device flexibility, no longitudinal metal bars, and precise deliverability and deployment characteristics that will be conducive to optimal success and safety, especially in the region of the aortic arch.