I thought at first this was a big joke being able to control the brightness with the phat DS. Got my girlfriend a the pink DS, it was the last one in the shop so I got it for £70 brand new. I installed the flashme v7 and thought I'd try it. It changes the brightness level, don't think it goes as bright as the DS lite does. It originally have v5 firmware. With the brightness set to max on the ds does anyone know how long the battery lasts? I am using the original supercard in it.