Piccolo provides what the authors call a “zoomable user interface”. It looks like a nice, intuitive way to view large quantities of data. I may have a real world application for this in the work that I’m doing… Here’s the intro:
Welcome to Piccolo! It is a revolutionary way to create robust, full-featured graphical applications in Java, with striking features such as zooming and multiple representation. Piccolo is an extensive toolkits based on the Java2D API. And best of all, it is free and open source!