Greg Veen is explaining canvas. Showing several examples of both Flash and canvas animations.
Now showing Bespin, an online code editor that uses canvas. Very cool. I had forgotten about that project. Ben Galbraith used canvas instead of Flash for performance, font rendering and browser interaction.
Alon Salant is now showing a dashboard for a large scale storage cluster network that is written in Canvas. The dashboard graphs are rendered with a JQuery plugin called flot and canvas.