In the 
recent article on 
PlanetIT with Bill McEwen he stated 
"Already, we can run very cool 3D animation on a Cassiopeia, and it is very smooth.". Well, just in case you dont know what a Cassiopeia is, its a PDA made by Casio.  The latest Cassiopeia has a 150Mhz MIPS, 16-32megs of RAM, 16bit color, a stereo headphone jack, and USB.  You can find out more about the Cassiopeia range 
here.