Fudzilla has managed to dig up some more information on NVIDIA's ION 2 chip that is expected to come sometime in the last few months of the year.
The ION 2 is said to have at least double the sharders of the ION. This means that have at least 32 and it will more than likely have more. ION 2 users should enjoy better GPU performance do to this increase.
Despite the increase in shaders, it is expected that the chip shouldn't hardly put off much more heat. This is probably due to NVIDIA shrinking things down and perhaps optimizing things even further.