Just read the article.
I've decided that there are a few things I should bring up regarding the rest of the anonymous's statement. And some things he said. First of all:
... "They wanted a console that was the same size as the Wii and wouldn't make much noise, so "mum wouldn't mind having it in the living room". It was during this statement that quiet alarm bells started to ring in my brain, but I ignored them and continued watching the presentation."
I'm no developer, but that seems like a noble goal for a company such as Nintendo that aims for a family-friendly branding. I think those quiet alarms may have been a bit early and unprovoked.
... "I realised the reason for my earlier alarm bells. If Nintendo wanted the hardware to have a small footprint and be quiet, they needed minimal fan noise, meaning that cooling was limited, which in turn meant that the CPU would have to produce a minimal amount of heat, which meant that the clock speed would have to be kept low. While I can't confirm specific details, the collective thoughts of the internet are presented for reference on Wikipedia."
So Mr. Anonymous perhaps feels that the product may be doomed to fail. Although, his string of logic seems a bit dismissive. For instance, why do laptops of similar size and the same CPU's sometimes have different rates of heating up? Why can a Macbook produce no noise while being stronger than one of my other non-mac laptops (and weaker than the other)? I wonder, perhaps there are sometimes more than one way to solve a problem?
... "over the course of six months we received multiple different development kits in a variety of colours, none of which revealed why they were different from the previous one. We knew that there were some hardware bugs that were being fixed, but the release notes rarely stated what had changed - we just had to take the new ones and get them working with our code again"
Mr. Anonymous has a point here if this is true for the whole 3rd party industry. Unfortunately, it seems Nintendo didn't communicate well. Mr. Anonymous also claims that correspondence was frequently late and in broken English, so that was handled very poorly by Nintendo. However, I'm less inclined to take this lack of communication seriously if Mr. Anonymous doesn't work for a larger 3rd party after all, and in fact works for someone that Nintendo simply doesn't have time for (again, Nintendo should have the same respect for all devs, but there are a lot of them). But if this is a larger company, like Ubisoft or Tecmo, then for shame, Nintendo. And I bet it is.
..."We were told that the features, and the OS updates to support them, would be available before the hardware launch, but only just. There were apparently issues with setting up a large networking infrastructure to rival Sony and Microsoft that they hadn't envisaged.
This was surprising to hear, as we would have thought that they had plenty of time to work on these features as it had been announced months before"
Perhaps the reason they didn't have time to work on it was because they were trying to find ways to solve the aforementioned hardware capability issues. It would explain the constant changes in the hardware of the dev kits and the lack of communication. And to some degree, it sounds like they did manage to get something done, as, by Mr. Anonymous's own admission, the GPU was better than expected, perhaps Nintendo's answer to the CPU being only okay as predicted.
And I'm sure Nintendo has used PSN and XBL. The controversial quote was almost certainly made during the broken English correspondence, with a poor translation deliberately taken out of context. Considering Japanese sentence structure, particle omissions, etc., I imagine the attempted statement was along the lines of "Please stop comparing this service to the PSN or the XBL; we want our gamers to have an experience that is unique to Nintendo, as opposed to playing those." But a broken, direct translation may have been: "To PSN and XBL please don't say about. [implied subject] don't use those services." Pick a subject. The translator picked the speaker. I imagine the intention was the consumers, and there was probably another sentence to prove it, as well as clarifying verbs.
...
So which dev?
It's probably someone who launched a release game, or close to it. It's probably not the one responsible for AssCreed4 or ME3, since those were examples used in the article. I also imagine it's based in an English-speaking country (at least not a Japanese-speaking one, anyway). It's also likely a company that only has one game on the Wii U roster.
I'm going with:
Vigil Games, with Darksiders II.
A cursory reading of the game states that it was critically well-received, but sales did not meet expectations. A cursory reading of the company states that it went bankrupt, and as such Mr. Anonymous was likely unemployed at time of writing. Vigil was working on a Microsoft Windows title at time of closure.
I was going to say Rocksteady studios, what with it being British and all, but I read the Wii U section of Wikipedia's Arkham City and found too much glowing praise for the Wii U to think it's them.
I've decided that there are a few things I should bring up regarding the rest of the anonymous's statement. And some things he said. First of all:
... "They wanted a console that was the same size as the Wii and wouldn't make much noise, so "mum wouldn't mind having it in the living room". It was during this statement that quiet alarm bells started to ring in my brain, but I ignored them and continued watching the presentation."
I'm no developer, but that seems like a noble goal for a company such as Nintendo that aims for a family-friendly branding. I think those quiet alarms may have been a bit early and unprovoked.
... "I realised the reason for my earlier alarm bells. If Nintendo wanted the hardware to have a small footprint and be quiet, they needed minimal fan noise, meaning that cooling was limited, which in turn meant that the CPU would have to produce a minimal amount of heat, which meant that the clock speed would have to be kept low. While I can't confirm specific details, the collective thoughts of the internet are presented for reference on Wikipedia."
So Mr. Anonymous perhaps feels that the product may be doomed to fail. Although, his string of logic seems a bit dismissive. For instance, why do laptops of similar size and the same CPU's sometimes have different rates of heating up? Why can a Macbook produce no noise while being stronger than one of my other non-mac laptops (and weaker than the other)? I wonder, perhaps there are sometimes more than one way to solve a problem?
... "over the course of six months we received multiple different development kits in a variety of colours, none of which revealed why they were different from the previous one. We knew that there were some hardware bugs that were being fixed, but the release notes rarely stated what had changed - we just had to take the new ones and get them working with our code again"
Mr. Anonymous has a point here if this is true for the whole 3rd party industry. Unfortunately, it seems Nintendo didn't communicate well. Mr. Anonymous also claims that correspondence was frequently late and in broken English, so that was handled very poorly by Nintendo. However, I'm less inclined to take this lack of communication seriously if Mr. Anonymous doesn't work for a larger 3rd party after all, and in fact works for someone that Nintendo simply doesn't have time for (again, Nintendo should have the same respect for all devs, but there are a lot of them). But if this is a larger company, like Ubisoft or Tecmo, then for shame, Nintendo. And I bet it is.
..."We were told that the features, and the OS updates to support them, would be available before the hardware launch, but only just. There were apparently issues with setting up a large networking infrastructure to rival Sony and Microsoft that they hadn't envisaged.
This was surprising to hear, as we would have thought that they had plenty of time to work on these features as it had been announced months before"
Perhaps the reason they didn't have time to work on it was because they were trying to find ways to solve the aforementioned hardware capability issues. It would explain the constant changes in the hardware of the dev kits and the lack of communication. And to some degree, it sounds like they did manage to get something done, as, by Mr. Anonymous's own admission, the GPU was better than expected, perhaps Nintendo's answer to the CPU being only okay as predicted.
And I'm sure Nintendo has used PSN and XBL. The controversial quote was almost certainly made during the broken English correspondence, with a poor translation deliberately taken out of context. Considering Japanese sentence structure, particle omissions, etc., I imagine the attempted statement was along the lines of "Please stop comparing this service to the PSN or the XBL; we want our gamers to have an experience that is unique to Nintendo, as opposed to playing those." But a broken, direct translation may have been: "To PSN and XBL please don't say about. [implied subject] don't use those services." Pick a subject. The translator picked the speaker. I imagine the intention was the consumers, and there was probably another sentence to prove it, as well as clarifying verbs.
...
So which dev?
It's probably someone who launched a release game, or close to it. It's probably not the one responsible for AssCreed4 or ME3, since those were examples used in the article. I also imagine it's based in an English-speaking country (at least not a Japanese-speaking one, anyway). It's also likely a company that only has one game on the Wii U roster.
I'm going with:
Vigil Games, with Darksiders II.
A cursory reading of the game states that it was critically well-received, but sales did not meet expectations. A cursory reading of the company states that it went bankrupt, and as such Mr. Anonymous was likely unemployed at time of writing. Vigil was working on a Microsoft Windows title at time of closure.
I was going to say Rocksteady studios, what with it being British and all, but I read the Wii U section of Wikipedia's Arkham City and found too much glowing praise for the Wii U to think it's them.
You sign this kind of news and your career in IT is over. No company will ever hire a guy stupid enought to admit that he shared details of business meeting with press. So there are two options: you get anonymous info, or you get years-outdated info that cannot harm current business activities. 
