Nvidia dropped by today to demo some of the awesome things that the GeForce 9400M in the new MacBooks can do that Intel’s integrated graphics just can’t touch, and to discuss a few technical points. Besides confirming that you’ll see it in other notebooks soon, they definitively answered some lingering questions about the chip’s capabilities: It can support up to 8GB of RAM. It can do on-the-fly GPU switching. And it can work together with the MacBook Pro’s discrete 9600M GT. But it doesn’t do any of those things. Yet.

Since the hardware is capable of all of these things, it means that they can all be enabled by a software/firmware/driver update. Whether or not that happens is entirely up to Apple. While you can argue that Hybrid SLI—using both GPUs at once—has a limited, balls-to-the-wall utility, being able to switch between the integrated 9400M and discrete 9600M GT on the fly without logging out would obviously be enormously easier than the current setup, and allow for some more creative automatic energy preferences—discrete when plugged in, integrated on battery. Hell, you can do it in Windows on some machines.

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nVidia and AMD are looking to wrest control from Intel over the specification for USB 3.0.
USB 3.0 is the next-generation high-speed connection standard due out next year that is expected to offer 10 times the speed of USB 2.0.
At issue is that Intel is allegedly not giving the specification to competitors in the CPU or chipset markets. Intel responds that it is "working hard to get the complete spec" to the industry. One source close to Intel alleges that nVidia and Intel are seeking the "host controller "specification that Intel says is beyond the USB 3.0 specification.

View: CNET: nVidia, AMD vie with Intel over USB 3.0