I mentioned Maemo 5 because in Maemo 4 we have this awkward situation where we couldn't use almost any of the graphics goodies of the underlying (more than capable OMAP2) chipset because of driver(/licensing?) issues. We know we'll be getting OMAP3 and will have hardware support for 3D, but without actual devices/code in the wild it's hard to tell just yet how good that support will be.