I found this via Engadget and its a link to a tutorial, in Japanese, yet still interesting, where a DS gamer was able to solder in a few connections under his DS' hood and increase the clock to 1.7x and he was even able to solder in a jack that allowed you to switch between DS and DS EXTREME... Though you do have to be a master of the soldering iron and know Japanese and are prepared to void your warranty, go ahead and give it a look here... The article... http://www.engadget.com/2006/07/19/how-to-overclock-your-nintendo-ds/ A video of the finished product... http://www.maxconsole.net/?mode=news&newsid=8530 And the actual tutorial... http://nds.jpn.org/ndslite2n.htm
Don't ask me, I didn't make it.... Though the game is faster and maybe it is more effective on Mario when moving from one side of the map to the other, speeding it up a little and then slowing it down when you reach your destination I guess.... But it is a good example of the potential and the ingenuity of the modding community, a example of what can be done with a little work and effort...
Hasn't this also been accomplished with the SNES? I remember hearing that overclocking the processor doesn't necessarily improve perfomance as it does induce laughter. They had said that, while playing Legend of Zelda on the overclocked SNES, sprites merely flew across the screen and the system was (obviously) unstable. The game of course was unplayable, and the process in which you overclock the SNES is fairly complicated. I'm interested in what this would accomplish for the DS, though, since it uses real-time processing and graphics rendering. I'd be more concerned with it overheating, though, and it suffering the fate a few Dell laptops have experienced.