Re: Optimus support for Linux
The pretty much only possible way would be for the nvidia driver to also include an intel driver. But I don't see nvidia writing a driver for intel graphics. Though I don't think an entire driver would be needed, just the modesetting part. So the intel card wouldn't actually do anything beyond setting the mode, the nvidia card would do all the drawing and then copy it onto intel's framebuffer.
Still, I don't see it happening. However nvidia has surprised me in the past, with the introduction of VDPAU, so who knows...