I was just talking with one of my TA’s (who worked for a display company) about the new iPad and he said that 120Hz is only worth the trouble if the display is OLED or Plasma, LCD’s do not have the response time to make the most of 120Hz refresh rate, the response time of LCD is its ‘bottleneck’ , not it’s refresh rate. But for display technologies that have a very fast response time, such as Plasma or OLED, you will actually notice an improvement if it’s at 120Hz. So if you can, wait until the OLED iPad and you will notice a real improvement in speed and smoothness (smooth scrolling)