You probably didn´t read my whole post, because I am not talking about that specific problem people are having. I was addressing people that believe (like you do) that Apple can magically make thinner laptops dissipate heat better. And yes, that´s as ridiculous as your answer to my post.
You need more power to feed a Retina display vs. a conventional one, because there are more pixel active at a time. The Retina display on a mobile device needs a lot of power currently and that will only get better with IGZO or OLED. When Intel introduces their Haswell architecture, which is a lot more power efficient compared to Ivy Bridge, the problem will also be dealt with externally.
The people that use a laptop daily are not talking about the display of a GUI. They want to work with a Retina resolution and applications, the GUI alone is almost irrelevant. If you´re displaying a whole webpage though, OS X needs to upscale/render to a Retina resolution and 1600p or even 1800p is a lot more demanding than 1080p or 1200p. In the worst case (1200p vs. 1800p) that´s over 2 times more pixels.
If Apple keeps the size of the casing the same and doesn´t go overboard with TDP on the new Haswell chips, the second generation should be a lot better.
Obviously you need more power, but I don't think you realize how much you actually need compared to what it seems like you're saying it does. There's more than enough information available online to show that the HD4000 and the GT650 both have no problems displaying at such a resolution. Sure it's going to take a performance hit compared to a "normal" resolution panel, but it's not some gigantic processing requirement like you think it is. After all, 27" iMacs are already rendering at resolutions much higher than 1920x1080 without issues and the Mac Mini can easily render OS X and applications on an external display at equally high resolutions, all with an HD4000 powering it. But I agree, the second generation should be much better. I'm waiting on Haswell myself to upgrade my machine.
Dude, this is a laptop, you want to write on it and not burn your fingers. You want that heat to GET OUT of your case as fast as possible and that´s only possible with fans. And if you´re casing is smaller with less volume internally, even the best vapor chamber technology is not going to help you, a case with a bigger volume though, would easily leave you enough room with bigger and slower spinning fans or one big slow spinning fan. But since the Retinas are so thin, there´s only room for one or two very thin fans that need to be active almost all the time for the hot air to get out. And if they suddenly spin up, you´re going to hear it.
This is no iPad with minimal dissipation that can be dealt with through the casing itself, this is a professional laptop you have to work on. People are very sensitive if their casing heats up like some iPads under load do already and if laptops do that it´s extremely uncomfortable for someone to type on them. And if there´s also loud fan noise it´s going to annoy you to no end.
I cannot believe you even think that thinner = better. You must be a marketing troll.
Marketing troll? Really? So you're telling me the machines that don't have this "fan issue" are functioning at much higher temperatures than they should be? Because when I had my retina model, it was functioning at much cooler temperatures, with the fans spooling up much less frequently, than I would've expected. It's one of the coolest running MacBooks I've ever used and the cooling system is leaps and bounds better. And I don't realize if you've noticed, but this is pretty much the first unibody MacBook to feature intakes on it in a location other than the rear. It has quite an extensive side ventilation system which draws in cool air, something the last generation unibody machines did not have. In my experience, this allows the computer to be cooler overall under load. If using a 15" retina for a couple weeks (before I returned it for reasons unrelated to this issue) and noticing how much cooler it ran and how much LESS the fans actually spooled up compared to other Macs I've both used and owned makes me a "marketing troll" then sure, I'm the biggest troll in the world I guess...

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Looks like Haswell will be more about low power and integrated graphics, to compete with ARM in the mobile/tablet space.
'Don't expect any earth shattering increases in CPU performance over Ivy Bridge, although I've heard that gains in the low double digits are possible.' (
http://www.anandtech.com/show/6248/haswell-at-idf-2012-10w-is-the-new-17w)
Am happy with my MBPR15 LG Screen and Samsung SSD
The last thing that concerns me is "earth shattering CPU increases in performance." I just want a machine that isn't plagued with issues like this that revision A adopters seem to be beta testing for Apple. The upgraded GPU performance and lower power usage are a bonus for me, especially considering that a big part of Haswell as an iGPU architecture at the very least, is dealing with higher resolution displays natively, which won't hurt at all, especially considering the resolutions the retina models are dealing with.
I'm waiting it out for the bug fixes that you can't just get through a software fix (like the squeaky cases, the buzzing keyboard backlights, the image retaining screens, and other such issues which just seem to keep popping up left and right with these things). The only Rev. A product I've ever bought from Apple was my MacBook Unibody from 2008 and, luckily, it's been one of the best purchases I've ever made with regards to electronics and has been nothing but reliable. That said, I took a risk when buying my Retina 15" in January but went for it anyway. I was reminded why I don't buy Rev. A Apple products, returned it, and am just going to wait it out for the more refined product. Hopefully the Haswell refresh is just that refinement.