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That looks amazingly close to Unity - did he change the layout to move the dock to the left of the screen?

The performance is amazing. :)

Yes, by default the dock is at the bottom but with dconf-editor you can move it in the other edges

If you don't have Elementary Tweaks installed, you should get it pronto from the PPA: https://launchpad.net/~versable/+archive/elementary-update

Exposes a lot of settings, including dock positioning, in a sensible manner.

very interesting elementaryupdate, thanks