Charles Nutter, hired by Sun a couple of months ago to work on JRuby, will come to Rotterdam in december to give a presentation. He will talk a lot about JRuby and JVM as scripting platform and a bit about running Rails on a JVM.

Registration via:
unieke-jruby-lezing-in-nederland-door-amerikaanse-jruby-guru-charles-nutter

Scripting is the next big thing for Java programmers, so be there!