Yup, we can't forget Pokemon Diamond and Pearl which could carry the DS by themselves for like two months. I don't think Nintendo released any GBA titles after Ruby and Sapphire in Japan for 2002.
EDIT: They released a Kuru Kuru game on Dec. 6, but it was all Pokemon from then on out.
EDIT: They released a Kuru Kuru game on Dec. 6, but it was all Pokemon from then on out.