You've probably heard of JRuby. Maybe you've even tried it. But why is JRuby a good idea? How can it help you build better applications? In this talk, we'll cover everything that makes JRuby awesome, from the JVM with its top-notch memory management, solid multithreading, and lightning-fast optimizing compiler, to JRuby itself, giving you easy access to Java libraries, robust Ruby compatibility, and trivial app deployment and distribution options. JRuby is an amazing tool for any Rubyist...come find out why.