I have a NDS official from NCL Flash ROM card (512Mbit) + swappable 64KB EEPROM save chip card I got when I was doing game reviews for DS. This came from Sega and has the final version of Sonic Rush installed on it.
I don't have the technical ability, nor other means to find a way to make this thing of value to me other than playing that game.
Anyone care to throw an honest guess what it is worth as I want to part with it probably.
You can check it out here: