That would be an awesome arranger indeed. In fact the keyfeel of DGX300/500 is so good that I almost buy it in preference of PSR2000. It just feels soooo good playing it.

But YAMAHA as someone already pointed out always manage to screw up a good thing by leaving out one important feature. It does not allow the lower voice (manual bass) to be changed independently. Also, access to commonly used buttons are awkward and buried in layers. If these deficiencies are corrected - I am sure many pro's will jump at this kybd. It will be an awesome keyboard for sure. If YAMAHA also adds those other PSR2000 features plus HD then it will be my ultimate keyboard that I will keep for many years to come.