There were presentations today on Ruby on Rails, a cool web application development framework, YARV, and one on Test::Unit (or test/unit, as he likes to call it now). Up next is the keynote addres with the creator of Objective C. Also, my little GUI for RubyGems is coming along, here's a screenshot:
The green items are installed gems, and the nested entries are for packages with more than one version in the RubyGems repository.