Dave Thomas gave the introduction keynote, where he talked about why he is a ruby fool. As it is custom, the keynote didn't really introduce anything, but was just a nice relaxed talk about the things that Dave likes about the language.
Listing to the talk, it seems to me ( even if it makes me sound old) like history is repeating it self. Some of the things that Dave points out as the new good things about Ruby is also some of the arguments for leaving C++ and go to Java:
.- multi paradigm language,
-.- OOP, prototype based, almost functional
-.- lots of ways to say the samething
After listing these things he went on to say the it was imperfect, and said that was a good things, things "Perfection is the enemy of all creation" (He was very convincing and I agree with him on this point)
Then followed some notes about how much Ruby and the community had grown.
-- pictures will be added when I can --