It looks like there is a real possibility that at least one model of the next rMBP generation could have *only* Iris Pro integrated graphics, and forego a discrete GPU completely. My question is: "how much would this matter for most people?" It's obviously going to affect games performance, but Apple has never been very strong in this area anyway, and they may just be sending a message that "MBPs are not designed for gaming". What other uses would be affected by a lack of dGPU? Does Photo/Video editing really need a discrete GPU these days? Do any common applications use the mobile dGPU for non-graphical OpenCL processing? I've just got a new MBA with HD5000 graphics, and have to say that the experience is very smooth, and perfectly adequate for anything I need to do on the machine. I really think Apple may just decide that Iris Pro is good enough for the vast majority, and the battery life benefits will outweigh the criticism of the minority who demand a dGPU. Thoughts?