Google surprisingly comes with Android N Developer Preview yesterday. Android N Developer preview comes with many new features like New System UI Tuner options, New app crash dialogue box, etc.
Also Read: Android N is here with Multi Window Tasking View and Many More Features
Now if you did not have the Android N Developer compatible device and you want to make your device look like running Android N, than what you are waiting for here is the default wallpaper of the Android N Download it and Enjoy!