Earlier quoted context omitted.
No it isn't an app. It is actually the full Ubuntu OS running on your android device. The point wasn't for it to be a touch screen, the point was that you could dock your device and suddenly be using a full desktop OS with all your desktop grade applications.
Yes, but it's running inside Android. It's not a complete OS that takes over the phone.
No, no its not running inside Android. Android and its Java environment run alongside/at the same time as ubuntu.