I met Jim at Rocky Mountain Ruby a couple years ago. He was friendly, easily approachable, and had that hacker humor that is so fun. You could just tell he loved everything about Ruby, hacking, and teaching and learning from others.
Wow, cool to see you post this. I had the pleasure of playing with him in that video! Many others have said it, but he was a joy to be around and always kind and generous.
He sang Ruby Coding High at that conference:
http://www.confreaks.com/videos/740-rockymtnruby2011-ruby-co...
Thanks for helping us all get on a Ruby Coding High Jim, we'll miss you.