What kind of presentation program Gregg Pollack uses in Rails for Zombies?

What kind of presentation program Gregg Pollack uses in Rails for Zombies video? They are very awesome and handy. http://images2.mytube.uz//images143/104764.jpg

Solution

They use Keynote (sometimes Powerpoint) and then they build a bit on top of it. They have a pretty thorough screencasting guide here.

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