I just bought a new DSi XL and when I played the preloaded Brain Age I noticed that the touch screen was slightly darker then the top sccren. The difference wasn't extreme and when I played Metriod Hunters I didn't noticed it, but the screens in Brain Age are most of the time white and when one white screen is darker than the other it is easier to spot. I doesn't really bother me but when it's already broken "touch screen darker than it should be" than I want to exchange it. It would be nice if you could share the experince with your own Dsi XL with me and if your touch screen is slightly darker as well.