Hi
Fascinating stuff!
As to 'later in 2012", this from page 8:
"Sandy Bridge and Ivy Bridge were both good steps for Intel, but Haswell and Broadwell are the designs that Apple truly wanted."
That led me to:
"Haswell's AVX2 integer support is particularly useful for processing visual data commonly encountered in consumer imaging and video processing workloads."
http://software.intel.com/en-us/blogs/2011/06/13/haswell-new-instruction-de...
Also:
"In addition, it will support OpenGL 3.2 and OpenCL 1.2, which will improve performance in certain general purpose computing on graphics processing units (GPGPU) supported applications. The iGPU will feature new Auto-Stereoscopic 3D (AS3D), which will provide 3D support that is typically only available through the use of discrete GPUs. It will support up to three independent displays: HDMI 1.4, DVI, Display Port, VGA."
http://www.tomshardware.com/news/Intel-Haswell-iGPU-DirectX_11.1-OpenCL_1.2...
I also found a page (which I've lost the link to) discussing Intel's strategy to get its next-gen IGP graphics 'certified' for applications like Nuke which now run need to run on nVidia Quadra-type external graphics cards...
Seems a lot is 'going on' for delivery 'later in 2013' ;-)