Everybody says that it's exactly the same stuff in Pa50SD and the MicroArranger. There is an updated OS to Pa50SD but not to the Arranger. All programs, styles and stuff can be used so why not the OS...? Anybody who knows anything about this?
Well they are different hardware so I would expect the OS of one to be incompatible with the other as the OS talks directly to the hardware. Being style compatible is an entirely different thing.