MacMod.com is running a Mac modding contest for the month of August. Entries can be submitted for everything from extreme overclocking, to slick case mods, to OS and software customizations. And, yes, there is a category for iPhone mods too. In proper hacker spirit, the submissions require a full howto guide in addition to the finished product, so even if you don’t win the all-access pass to MacWorld 2008 you’ll at least have given the world a cool hack or two to play with.

The video above is last year’s winner, the Bang & Olufsen MP3 player Mac. It has a custom interface written in Applescript which accesses the iTunes library and is completely controlled by the slider hardware on the front.

The Great MacMod Challenge 2007 – Link
Bang & Olufsen Mp3 Mac Mod – Link