extended wallpaper on MBP retina

[studUS]

I am able to use 2 external monitors using the Thunderbolt ports and I also know it's possible to add 1 more to the HDMI port but for now I would be interested to know how can I extend this 5760x1080 wallpaper over 3 monitors. I know there is the Eyefinity technology for ATI cards and I found few tricks on how to do it in Windows but I found nothing on how to do it in OSX for the new Nvidia 650 card. any ideas?

 

[nontroppo]

Well the cheating way to do it is crop it into 3 images, I don't know of an easy way to do that via System Prefs in OS X...

 

[studUS]

I'm pretty sure there is a more elegant solution