CTRL + ALT + Left/right arrow key. Switches to the new side of the cube. CTRL + ALT + SHIFT + Left/Right arrow key- Takes the in focused app around cube. CTRL + ALT + Hold Left Mouse Button - allows you to use the mouse to rotate cube. ALT-TAB - Task switcher - choose a task on the current side of the cube CTRL-ALT-TAB - Task Switcher - choose a task on ALL sides of the cube