WebSphere Technology for Developers is the first application server featuring Java™ 2 Enterprise Edition (J2EE) 1.3 compatibility. You can run J2EE 1.3 applications -- including applications from other vendors or applications you have built yourself -- that take advantage of JSP 1.2, Servlet 2.3 and EJB 2.0 specifications. You can also build new applications that implement the latest Web services APIs including SOAP and UDDI4J.