MC,
I spoke with friends at Korg and I've been told that the realism of voices on the PA1X will blow us away. Korg is using a version of the Yamaha "mega"voices which are going to be easier to play live then Yamaha and I know two of the style programmers hired for this job and they say their style making is completely different from the PA80. I've not heard it myself, but I trust these two friends judgment and I can't wait to hear this keyboard.
I also spoke today with the product manager at Korg USA and the keyboards are in production and should arrive next month (november).
George Kaye
Kaye's Music Scene
Reseda, california