politicians brag about being in touch with the people, and it is quite evident that McCain is not in touch with the people of this day. As much as I bash Bush, I can at least give him the credit of being able to check the internet, and even uses "the Google".
I think this is very symbolic of McCain's perceived lack of understanding of the average American's life. Also, I would find it to be a very poor idea for a CEO to not know the basics of his main product.