As you know Apple uses NVIDIA GeForce 9400M chipset since October 2008 in MacBook and iMac. This chips did not evolve as NVIDIA has left Intel graphical chipsets in the dust. However, as one should not expect that Intel will not react, NVIDIA is preparing the successor of its Atom-dedicated GeForce 9400M (known as ION platform). Improvements should be significant as the new version should have have much faster graphics and much more shaders (at least twice more than the GF9400M). In addition the power consumption should not change as thinner engraving should help to control it.
This evolution should be available by the end of the year. Unfortunately for NVIDIA, at the same time period, Apple should have adopted the new Intel mobile architecture based on Nehalem, an entirely different hardware in which Intel did not let any third party to be involved.
