There is a new thing that was developed just recently that involves a simple chipless mod, and then running a homebrew app that changes the DC's region until you run the app again. It allows you to do wacky stuff like have the Euro blue swirl, but play games in NTSC, etc. I can't remember where to find the info, and I haven't tried it yet myself, but from what I read a few weeks ago, it looked really cool.