Unity Launcher is an application which can add a side bar , which will help you to select application from any screen and can easily launch applications.
It is just like the multi-window available on the latest android version (For Samsung devices like Note and Galaxy), but by using this application you can customize the position of the launcher.
This application is available in Free and Paid versions where paid version offers more customizations like
Change launcher bar color.
Change Icon Backgrounds.
Customize animation and launcher visibility duration.
Swipe from left or right edge of Phone.
Re- Order apps with dragger
The live wallpaper shown on the above screen shot is Ubuntu Live Wallpaper Beta by Kivano which looks cool with Integration with the system clock or Battery. This live wallpaper is on beta stage so before installing read the known issues.