I just released version 0.1.3 of Wirble. Wirble is a set of enhancements for Irb (the interactive Ruby shell), including tab-completion, history, and, most notably, colorized results.
This release adds Ruby 1.9 support and removes a couple of warnings. I've also added better support for non-RubyGems installations (via setup.rb) and removed the advertising clause from the license.
You can install Wirble via RubyGems or download it directly from one of the URLs below. Enjoy...