Book excerpt: * While the promise of Java has always been "Write Once, Run Anywhere," SWT and JFace make it a reality. Write it once but run on all different platforms. * Major revision of Eclipse 3.0 is coming out (probably April or May, 2004)– this book will be up to date (3.0) with no "time bomb" shelf life. Covers SWT 3.0 (in development) and 2.1. * Eclipse is free and open source and will become even more important over next year or so/ Eclipse will be the editor of choice for all developers going forward – the standard IDE for open source development. * Offers GUI designers an alternative to developing with Swing.