5600dpi. 1ms response time, both in wired and wireless modes. 14 hour continuous use battery life.
From the video segments, the Mamba lookes to have pretty much the same footprint as other Razer mice. It looks a little taller, but not much from the video footage of its usage.
Its main drawback looks to be the price tag... $130 if bought direct from Razer. Street price will probably be a little lower.
I had posted most of this on a previous page.