The problem is while it make make it easier for your brain to comprehend we're really not getting anywhere since the display method is natively 2D, keyboard shortcuts are more efficient in the long run. Honestly I wouldn't appriciate having to worry about having to balance FPS between texture detial, AA, AF, etc like I do in games haha
I just realized how much i'd use it if I could just drag something (i.e. XMMS!!) to the system tray and back, would be a great feature... I'd do it myself but I'm not familiar with programming for KDE or linux in general since I've just recently come from windows so it will take me a little while to get used to things