Prism: Light the Way hands-on at IGN.
"Eidos is going all gung-ho with original properties on the Nintendo DS this year. Its brand, Secret Stash Games hit the scene with Touch the Dead, Nervous Brickdown, and Glory Days 2, and the company is ready to launch another original title for the system: Prism: Light the Way, a unique puzzle game that uses light as its core component."
Full Source: IGN