Unfortunately they didn't say refresh rate is improved (i.e. 120 FPS screen updates), only that response time (latency) and switching speed (motion blur) are improved.
Yeah, I had to read that paragraph a couple of times to get it myself. I was really hoping for a 120 Hz panel because I think it could make a big difference. Of course, it's still possible it will support 120 Hz and they just haven't told us yet...