No idea. I always considered it to be Razer's take on the RAT series. As soon as I can put some funds together for one of these, I'll pick one up and do a review.
Yeah, it's not meant to compete with the DA as the above poster said, why would Razer make a mouse that competes with one of their major sellers? The Ouroboros is definitely a challenger to the RAT mice that have done very well, despite the controversial choice of sensor.
I recently got one of these, and first off; the US version is different from the rest of the world, at least according to Razer, although only difference seems to be how you adjust the rear shell. The US version comes with a small screwdriver that you need to loosen the screws and then adjust the rear shell, non-US just has a button you press down and then move the shell. Dunno why, patent issues maybe?
Mine, the non-US version, did not come in a box like that, nor haev I ever seen it packaged like that anywhere. It came in a clear plastic case similar to the one the Mamba comes in.
So yeah, I'll be including my experiences with it in my upcoming writeup/mini-reviews on all my mice, but if anyone wants to know something about it then ask and I'll do my best to answer.