nk497 writes: "Canonical has revealed Ubuntu running on a smartphone — but the open source developer hasn't squashed the full desktop onto a tiny screen. Instead, the Ubuntu for Android system runs both OSes side by side, picking which to surface depending on the form factor. When a device — in the demo, it was a Motorola Atrix — is being used as a smartphone, it uses Android. When it's docked into a laptop or desktop setup, the full version of Ubuntu is used. Files, apps and other functionality such as voice calls and texting are shared between the two — for example, if a text message is sent to the phone when it's docked, the SMS pops up in Ubuntu, while calls can be received or made from the desktop."