Good find Ky,
I gotta say though, from that video there was not 1 single thing demonstrated that is not in the PA 3x...
I am only speculating at this point but I don't see many major compelling differences over the PA 3X as yet.
One of the "new features" listed is an SMF to Style converter. this feature was in the PA 500/800 and the PA3X already...
Even the "Tough Aluminum Casing" they are boasting about. The PA3x had this!!! its the same casing just has brown instead of grey on the base and the edges of the keyboard.
the good news for PA3X owners is - i am sure a nice OS update will be released when the PA4X comes out giving the PA3x alot of new features that can easily be provided through an update.
Someone above asked whether the PA4X can p-lay Style Files directly from a USB like the Yamaha's can - without the need to save the file onto the keyboard first... this would be a VERY nice to have - even registration memory banks would be another...
Anyways lets see what happens in the coming weeks
Nick