My first gen DS stopped being touchable.... (the touch pad worked but the coords where soo messed up and no matter how much i tried to calibrate it still wouldn't calibrate).
But it broke like 2 weeks before the ds lite came out.... so i shed no tears :)
And it's still great for game boy advanced games and tetris (the only ds game I know of that doesn't use the touch pad).
PSN ID: TheSimkin
GamerTag: TheSimkin
WII friend Code: 0002 7972 4522 2681