Just upgraded to Caucho's Resin 3.04 and theres no douht its super quick. I browsed my gallary of berlin pictures in extremely quick speed, much faster than resin 2.x. Did some tests and boy oh boy its quick. Caucho do claim that its almost as quick as Apache 2.0, and i'm not douhting it. I did do a test against IIS and you can guess which one lost out by along way. I actual couldnt believe the process power needed for IIS compared to Resin 3, and resin does JSP, XSP and Servlets.