The DS so far is more than capable of handling the graphics needed to pull of PD game (Saturn quality). Sega never did make that sequel to Azel, and I think the game play would be ideal for the touch screen. You could have all of your morphing and positioning stuff on the lower screen, and your action on the top screen. I know Sega would never be smart enough to do this but we can dream! Azel ended in a really cool way, it is by far my favorite game in the PD series (which is my favorite game series). I would love to see a sequel and I think it would be completely at home on the DS.