DJP from the DS-X forums has posted his work-in-progress skin for the DS-X interface. This skin is a clone of the "classic" DS interface and maintains the clean look created by Nintendo. At the current time, the skin only contains images and a customized look for the main screen of the DS-X interface, but it's one "hell" of a job! With custom animations for scrolling through the items (games, settings, about, music) and each with a nice action animation, this is the skin to get! Although it isn't complete right now, it beats the default OS look in my opinion!

To install, just delete your old skin folder (I recommend backing it up however just incase you want to revert back) and move this new skin folder (after extraction of downloaded file) to your DS-X's memory root. It only takes about 1-2 minutes (since there are numerous files being transfered) to install and boots up without any problems.