Hi Gunnar,
My concern about upgrading to a new chip right away is what if they come out with a subsequent os update (a month or 2 later) which might include some of the other features we've been hoping for (intro/ending type saved to reg memory and/or vocalizer speedy mouse/karaoke girl fixes). That would mean (if indeed the PSR2000 no longer supports flashROM OS upgrades) taking the keyboard to a repair shop (and leaving it there) for yet ANOTHER chip upgrade - Scott