It's a picture from the Paris show, I think I found it on the topic of the show. I'm checking it. It was a link with many HD photographs, completly awesome
Close or minimize all windows, and go to your desktop. Then, press the Prt Scr key on your keyboard (or whatever it's called in your model), then go to Microsoft's Paint and push Ctrl+V to paste it. Save and share
Just spent nearly an hour playing around and trying to get something a little dynamic, quite happy with it but not 100%. Might have to sacrifice my slideshow wallpapers or disable the light ones. Anyway, here it is:
As you can see (apart from iTunes) I'm a Windows fan
EDIT: Here's a variation after the background changed: