Orcs and Elves interview at IGN.

"Next week Electronic Arts will ship Orcs & Elves for the Nintendo DS, a dual-screen conversion of the cellphone design brought to life by game engine guru John Carmack, best known for his work at id Software such as Wolfenstein 3D, Doom, Quake…and the list goes on. The man also had his hand on the Nintendo DS version, building the tech to get Orcs & Elves moving on the portable system."

Full Source: IGN