I came across this article written by Brad Banister over at Open Source titled, "Bringing Ruby to the Entrprise." 

A primary selling point of Rails is the claim that its users gain a big productivity spike over standard Java in developing Web applications. This fact is attributed to both the simplicity of using the Rails framework, as well as the vastly reduced line-of-code count between Ruby and Java code when doing identical functions. Rails is also more productive than other frameworks because its templating language is itself Ruby, which obviates the need to learn a specialized framework language.

I recently picked up a copy of the pickaxe book, but haven't read further than chapter two.  I did enjoy reading the series of ruby articles published by Linux Journal in their July 2006 edition.