VncThumbnailViewer gives you the ability to connect to and watch multiple computers at the same time using the VNC protocol. It presents live thumbnail views of many computers in a single window, scaling and rescaling the views to best fit. Double-clicking on a single thumbnail allows you to enlarge it and take control of that computer's keyboard and mouse.
Schroedinger is the combination of Apache Tomcat with a nice, clean Swing GUI. It provides an easy way to create and test JSP and Servlet Web applications. It records every JSP/HTTP activity so that every possible bug can be corrected immediately. Schroedinger can be used in personal mode, which prevents others from using its JSP Server while you develop the application. Alternatively, Schroedinger's working directory can be opened via file-sharing, so that a JSP can be copied to any computer of the JSP development team.