Smalltalk Tidbits, Industry Rants: The power of dynamic: "The guys describe a small web app that they built using a 'lite' Java stack - Spring and Hibernate instead of the full J2EE stack. Time to build - 4 months. Ok, they decided, on a whim, to try Ruby on Rails. Time to build?
That's a pretty amazing productivity jump, and they were pretty shocked. They went on to state that dynamic languages just have it all over Java in this sphere, mentioning Ruby, Lisp, Python, and Smalltalk (stating that Ruby has momentum)."