The Corsair comes with a signage processor for it's controller. Very important if you want all those flashy displays.
Does the Rosewill?
Kaiith bothers me a bit, but what really botheers me -- Corsair had problems with some of the LEDs suffering early death. The Cherry RGBs are supposed to fix that by putting the LED inside the switch. Im pretty sure that Cherry has a patent on the process. Does Kailth have a similar mechanism to avoid LED death?
Probably no on all counts. Not sure about the processor issue, but it seems pretty basic in terms of effects, going by the Newegg video. Single color, single color breathing, color-cycle breathing...and that's around it, IIRC.
LEDs are implemented differently from in the Corsair, more like standard LEDs. You can see them in the video. It's the same implementation as Tesoro's "Lobera Supreme" model.
Btw, this is an iOne product. Wonder if we'll see a Max Keyboard version...