Chris Parsons The meandering musings of a coder

I've been playing quite a bit with Ruby on Rails in the last couple of weeks, and I'm liking what I see. I watched the videos and bought the book, and I'm writing a web application in it now. I'll let you know how it goes.

However, before I get too deep into this; I have a question: did any java coders out there find a good reason not to switch?