According to an online resume from an ex-AI programmer, Rockstar was working on a n 3D open-world DS game. That said game was supposedly in production by Rockstar Leeds, the studio behind Chinatown Wars.

Here is a blurb from the resume.

“…Later I worked on an unannounced DS title set in a full 3D open world. For this title I worked on various AI Systems including a complex hand to hand combat system. I ended my position at Rockstar while working on L.A. Noire for PS3.”

Is this real? What was this project? Has it been cancelled or lets say moved to a better system like the 3DS? So many questions!

Link