Could it be true? The next iPhone will run on solar power? And have two buttons over a circle? And use solar cells? Absolutely not, but a patent points to some ideas by the Cupertino giant that would embed solar panels behind the LCD screens on some devices. That said, it’s going to be a tough job to convince folks to charge their stuff by solar. Consider what the iPhone would look like — and how much it would overheat — if you left it out on the dashboard for a few hours. Solar chargers, sure. Solar watches, sure. Solar iPhones? Not yet.