SEATTLE--(BUSINESS WIRE)--Calypso® Medical Technologies, Inc., a developer of real-time localization technology used for the precise tracking of tumor targets, today announced that it has entered into a strategic development agreement with Varian Medical Systems of Palo Alto, Calif., the world's leading manufacturer of medical devices and software for treating cancer, to jointly develop products integrating its Calypso® System with Varian’s radiotherapy treatment technologies.