We continue research and development on the National Weather Radar Testbed (NWRT) in Norman, Oklahoma at the National Severe Storms Laboratory. Developed as a partnership between the National Oceanic and Atmospheric Administration's National Severe Storms Laboratory, the United States Navy's Office of Naval Research, Lockheed Martin Corporation, the University of Oklahoma's Electrical and Computing Engineering Department and School of Meteorology, the Oklahoma State Regents for Higher Education, the Tri-Agencies' (Department of Commerce, Defense and Transportation) Radar Operations Center, the Federal Aviation Administration's (FAA) Technical Center and Basic Commerce and Industries, Inc, the NWRT is providing both meteorological and aircraft surveillance data for testing the concept of a Multifunction Phased Array Radar (MPAR) system. In addition, the NWRT has become a testbed for signal processing advancements applicable to agile beam radars as well as classical systems. Moreover, it plays a significant role in the education of the forthcoming generation of radar meteorologists and engineers. The testbed continues to provide valuable data on weather events and to demonstrate the advantages of using phased array technology. Participation by National Weather Service forecasters has expanded our knowledge concerning the benefits of fast scanning radars. The Digital Signal Processor (DSP) and Real Time Controller (RTC) have been modified in order to test advanced scanning strategies. Risk reduction activities in collaboration with the FAA are being pursued. In this paper, we provide further details on MPAR activities; give an update of 2011 data collection inventory and a brief summary of future plans.