Registration is now open for the 2007 Reconfigurable Systems Summer Institute (RSSI'07), which will be held July 18-20 at the National Center for Supercomputing Applications (NCSA) on the Urbana-Champaign campus of the University of Illinois. RSSI, now in its third year, brings together scientists and technology developers from industry and academia to share information and ideas about high-performance reconfigurable computing. RSSI'07 is co-sponsored by the National Center for Supercomputing Applications, OpenFPGA, and the University of Manchester. Corporate sponsors include: Altera, AMD, Cray, Mitrionics, Nallatech, SGI, SRC, Xilinx. Nallatech, Mitrionics/SGI, and SRC will hold co-located user events on July 17, and RSSI'07 attendees can request invitations using the RSSI online registration form: its Web site.