Good question. I don't know the official difference between emulation and virtualization. I do want to point out that these were the words of the presenter, and

Good question. I don't know the official difference between emulation and virtualization. I do want to point out that these were the words of the presenter, and not my own: “So, Android and Linux support don’t do any emulation. By using lightweight containers and hardware virtualization support, your code will run natively.”