Original: Yoshi's Island DS was announced at E3 2006 under the name Yoshi's Island 2, originally featuring only baby versions of Mario, Peach, and DK.
Simplified: Yoshi's Island DS (called Yoshi's Island DS in Japan) is a platform video game made by Artoon, and published by Nintendo for the Nintendo DS. It is an update to Super Mario World 2: Yoshi's Island.