It [has been revealed](http://www.theverge.com/2012/8/3/3218846/schiller-forstall-fight-club-day-three-apple-samsung-trial/in/2971889) the original iPhone was developed in a locked down building under the name "Project Purple". Because of the secrecy involved, the team decorated the building with [Fight Club](http://www.imdb.com/title/tt0137523/) references. If you don't think this demands a wallpaper, you're weird.
> Forstall said that "on the front door of the Purple Dorm we put a sign up that said 'Fight Club'... because the first rule of that project was to not talk about it outside those doors."
The full size I designed the wallpaper in is 3200x2048px. I don't know why Apple uses 3200px as width for the default wallpapers in Mountain Lion but it seems a good width for now. And a height of 2048px makes this big size perfectly usable for the iPad 3 too.
![Creative Commons License](https://i.creativecommons.org/l/by-nc/3.0/de/88x31.png)Project Purple by [Matthias Kretschmann](http://kremalicious.com) is licensed under a [Creative Commons Attribution-Noncommercial 3.0 Germany License](http://creativecommons.org/licenses/by-nc/3.0/de/).