intel CPU with integrated AMD or even nVidia GPU would be awesome, however we're not quite to the point where integration would be good enough for gaming
I'd still much rather have more intel cores (ie mainstream intel platforms look to be stuck with 4 cores for the next couple of generations including Ivy and Haswell) and perhaps a more refined system for CPU <-> GPU communication, a GPU as a co-processor perhaps. At any rate a proper CPU and GPU are far too big to be sharing the same space.
that being said I'd have to agree with boxleitnerb, there are far too few games that are properly produced to fully and/or most efficiently exploit the higher end hardware that we do have, and thus a perfect world could very well just be something like giving everyone the same high end system even if it didn't have the absolute highest end parts it would be enough to have developers program games perfectly for everyone
Outside of gaming though, a robust integrated GPU/CPU/Specialized instruction CPU is something that would be well received.
When I used to work in banking, we would have killed for the encrypt/decrypt hardware functions on new CPUs and our other analysts would have just loved to have GPGPU type acceleration in some tasks, as it was sometimes pretty tedious. So for those users, they get a 2 module CPU, 1 Radeon module, and one hardware encrypt/decrypt CPU. And I know the complaint...why not get a good Intel quad core and pair it up with a Quatro card? Some of the folks only need the GPGPU support a few hours a week, so spending $500 or more and the extra power cost is not always the best investment.
Perhaps other users I worked with would not benefit from GPGPU and decryption and do more typical office tasks, so their "CPU" would just be two standard modules without the Radeon Care and hardware encrypt/decrypt (to save power etc).
Imagine a typical third user that validates ARM applications and could have 2 AMD CPU modules, a Radeon Module, and an ARM module all in the same socket.
While the third case is a little more challenging to implement, I think the path of the industry is increasingly moving toword more customization of "CPUs" and the GPU is going to be a big component of that, and it will increasingly be aimed toward the work world, since as this thread points out, a Radeon core running GPGPU provides a substantial improvement in applications that can utilize it, while they are at best mediocre in gaming.