the fastest access of a huge amount preferred files, folders, fav./bookmarks 
@ the left  and top screen edges  
► you can jump from the most importent file in the folder X to the most important file in the folder Y 

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Flash animation
 600pxl from a 1000pxl screen
you can klick too into the control bar  -_- flash mirror

to access a bigger amount preferred files, folders + favorites/bookmarks with logical shortcuts ─►
in the browser addressbar
in the Win taskbar addressbar advantage: you mist not open a program