Firmware version 6.3 is out and as Fist Full of Potions
points out, something's rotten in Denmark -- or very sweet, depending on how you feel about Japanese consoles of yesteryear. The update allows you to "group content" by putting your games into specific folders corresponding to platform, but also curiously adds empty folders for the NeoGeo and PC Engine -- otherwise known as the TurboGrafx-16.
This update could be the precursor to an announcement for the PC Engine Archives
extending their reach beyond Japan or it could simply be an overlooked byproduct of the update. Either way, we've contacted Sony for comment and will let you know what we find out.