There are new models with this "feature" coming. Feature is *much* less response time which might be very good for AH or other games. In particular Hitachi CML174, NEC 1760NX and BenQ FP767 will have it.
Here is explanation and very nice illustrations
http://www.extremetech.com/article2/0,3973,75440,00.asp Found this accidentially and thought this may be interesting for someone.