Make no mistake: It's a hard trend (a certainty) that tablets and smart phones are rapidly becoming people's main computer. Therefore, you want your website to be seen well on these devices and to be useful.
Your personal assistant with Web 4.0 will search for you without you even specifically asking. Your personal assistant will know your preferences, your likes, and your needs, automatically compiling, presenting, and sharing what's pertinent.
While many parents and teachers lament over what a waste of time video games are, they are walking past a historic opportunity. The only thing being wasted here is the true value and potential of these technological marvels.