So with all the devices available for Portable Gaming, one that we have not exploited yet is the Windows Mobile device. Yes you might argue that we have casual games a all that, but in order for the device to TRULY be a gaming device, you need a couple of things, Fast Processor, Dedicated Graphics Processor and a playable joystick/keypad. And perhaps in the future (to follow the desktop/console gaming path), multi-cores and dedicated Physics processors.
and if you notice, we don't have ANY of it on our devices today. :P
Well thanks to nVidia, we're one step closer. They just announced that they will be including nVidia GoForce handheld graphics processing units into a few Mobile devices but primarily for Mobile TV and I can't wait for them to include that into more and more of our devices.