<< Yeah, the new ms opticals run at 2000 dpi. The old ms opticals were at 1500dpi, hence the 33% increase. >>
That's not DPI...the old optical sensors took 1500 pictures / sec, and the new ones take 2000 pictures / sec, that doesn't translate directly to DPI though. I read somewhere that the 1500Hz sensor was rated at roughly 1200dpi, so I guess that would make the 2000Hz sensor rougly 1600dpi. I don't know which the logitech uses but either way it's more than than the Razor 1000 but less than the Razor 2000.