Matz on Ruby 1.9
I attended RubyConf 2007 in Charlotte, NC. During Matz's keynote address, he described some of the firm decisions he's made with respect to version 1.9 of Ruby.
Unfortunately I didn't take notes during the keynote. However, from memory I created some slides to show to the Southeast Michigan Ruby Users' Group's November 2007 meeting. I've exported the slides as images below.