I am a J2EE Software Architect and I have used JSPWiki very successfully as a way of publishing rapidly changing project information. My teams have loved it because it means that they do not have to spend hours updating Word documents or complex web pages (which they can but can't be bothered to!!). The instant nature of a Wiki seems to appeal to the fast moving nature of J2EE project development; I can make a change in the build process and have the change documented in minutes rather than the hours it used to take.
I haven't contributed to JSPWiki but I will do. Great work - Well Done!!