See here for details.

You can see a picture here
(click to enlarge)

will this be same action on keybed as the Pa1x pro or the new M3 workstations (synth key versions) or are they the same?
both feel real nice.
Is sound going to be exactly same size as Pa800? seems like not much difference between korgs midrange model and high end model now appart from the obvious.

i reckon it will be exactly the same as the pa1xpro (76 note) and if so it is a superb keybed, probably the best non-weighted bed i have played on, and i am fussy!!! i sold my pa800 because of it..