Creating Passionate Users - Reverse engineering passion

I watched the video-recording (101 MB .ogg file) of Kathy Sierra's talk from LCA '07. It's really good and I learnt many things, which would surely me in getting better at things (building software/products or communities).

Thanks to Gopal for sharing the link.

I noted a few things (points, quotes, words etc etc).

Some of the attributes of passionate users: