If a full version based on this will ever see the light of day, I hope the dev's will base their actions on our reactions towards the demo or possibly any upcomming early builds. At least, from the looks of it, it's going to be more 'Jazzy' than the GBA game.

I'd say it's too early for FI><0RS to be needed at this moment. After all, Jazz's early 'preview' sprites from JJ1 prerelease screenshots were looking strange as well.