Ok, so I get that you hit `home` to leave an app running and return to the main menu, and you hit `back` to quit an application. But sometimes the `back` button goes back a page/screen, like on the browser, or..well, a few apps really. How are you supposed to quit those? Hit `home`, then reload the application again and then hit `back` again, or hold back, or keep pressing back? Seems a bit clumsy. Wouldn't it be better if holding `back` would quit the app? Or am I missing a trick here?