The original Mountain Lion galaxy wallpaper is available for download, courtesy of naughty developers who leaked the bits to the web just as Apple had released the OS through dev channels.
There are currently three ways to get an early taste of OS X Mountain Lion.
One is to have a paid Apple developer account, which means you get to download all the assets restriction free. Another is to download the Messages app and try it out. Lastly, even if you’re on a Leopard machine, you can still get a taste by downloading the original Mountain Lion wallpaper.
The high-resolution image (3200×2000 pixels) is available here
. The image is similar to the standard OS X Lion wallpaper, but this one’s a bit warmer.