Ubuntu have officially released the their own phone operating system today. Ubuntu phone OS is an open source project whereby two different version are available - normal and premium. Normal version Ubuntu operating system is suitable to run on entry-level smartphone but with limitation on the functionality while premium version require high phone specification with more features.
Ubuntu operating system on phone is fully motion-controlled, each corner of the screen will able to perform different task respectively. A light press on top left corner of the screen will call upon the menu while swap from left to right across the screen display the current running application. Light press on top right corner is performing the same task as back button.