Et tu, Ubuntu! Canonical will make announcements on the open-source Ubuntu OS for smartphones later this year, the company hinted, but refused to offer even a general release time frame. At the trade show, an Android smartphone (the black oblong in the foreground of the photo) booted using Google's mobile OS, but then loaded and ran Ubuntu side by side with it when the phone was put in a dock that was connected to a monitor. The Ubuntu version in the demo provided the full experience also found on the desktop version of the OS, including access to Ubuntu Software Center and the Unity user interface. The dual-OS will take advantage of multicore ARM CPUs and graphics processors in smartphones today, Canonical officials say.