Seems like we have a lot of UK-specific threads come up that sometimes get drowned out. A UK-specific forum would be quite useful for many in our rather large sector of the MR community. I could see many of us subscribing to such a forum and giving each other a lot of support without clogging the regular forums.
Mods?
I'm not a mod, but I feel I have a respectful opinion to offer, so I'll offer it all the same.
From what I understand in your OP, you're looking for some special "UK" Community Discussion that would also feature threads on iPhones, discounts, and anything else that might have a different pricing structure correct (I'm basing this off of a later post as well:
No. Just a UK forum. People can ask about stock, 3rd party UK suppliers, HE and EDU pricing, UK promotional offers etc. All sorts of UK-specific threads come up, as you know, that are of no interest to non-Brits in the iPhone, MBA, MP, Buying Tips, etc., and they aren't very accessible to us.
)?
So, now, we need to ask and answer two questions:
1) Is the Community Discussion so overwhelmingly anti-UK that there will be a marginal benefit by separating the forums?
and
2) Is tech help for UK users hard to get on this forum? And, if it is, will segregation solve that problem?
The answer to Question 1 I think is more difficult to settle. Certainly there are more "American" community discussions, but I don't get the feeling that there is any bias which prevents, deters, or otherwise infringes on any citizen of the Crown to post a reasonable reply (this applies to Canadians, Australians, Kiwis, et al.).
Then again, I'm an American. Do you UKers feel left out? It might be a legitimate concern. I wouldn't presume to tell you how you feel, but judging from
this thread, I gather that the UKers are quite happy with the forums as they are (and I'm guessing the Community Discussion is included in that as well).
Now the Community Discussion also includes things like "Current Events" and "PRSI." From what I have seen in both of those, discussion is very rarely strictly about the United States. Even in this very heavy campaign season, there are threads about international politics, and about Argentinean teenagers have two sets of triplets. Surely those aren't exclusive to any nation?
Even if they were, I see members from the UK get quite actively involved. They want to share a differing perspective, and that's what makes the Community Discussion so effective and fun. To sum it up, I've got the brilliant
skunk:
It's the international nature of this forum which makes it so engaging.
Indeed it is. Wouldn't Community Discussions/Current Events/PRSI be boring without international perspective? I think the answer is "yes," and I think I've laid out a good reason as to why.
So, to recap Question 1:
1) Is the Community Discussion so overwhelmingly anti-UK that there will be a marginal benefit by separating the forums?
I think I've laid out that the Community Discussion does not have any particular bias against members from the UK (or any place for that matter) and that separation would only weaken, not strengthen, the quality of discussions in the hypothetical "UK" version of Community Discussion.
So, with that settled, let's go on to Question 2:
2) Is tech help for UK users hard to get on this forum? And, if it is, will segregation solve that problem?
I have seen many, many threads started by members from the UK, and I see them get tech help all the time. I realize that this is merely a single person's observations and can't to statistical reason, but surely others will note a similar phenomenon?
Even if my observations are wrong, let's consider what benefit could be gained by separating tech advice by region. The first thing to note is that a great deal of tech help relates to hardware or software malfunctioning. This isn't dependent upon a region. The air in Washington doesn't make iPhones work less often than in London or Canberra or Auckland or Ottawa. Granted there are other wireless carriers and the like, but I'll address that point later. The crucial point is that hardware fails relatively equally (unless you're
Sesshi 
), and that the cause of failure is likely to happen to users from across the globe.
Knowing that this is the case, why would Mac Rumors divide possible thread topics strictly on the basis of geography? Is the person from Ottawa going to care if the solution comes from Canada? This seems to be a very critical point, because the wealth of Mac Rumors is found in the knowledge that so many international users have and bring together. It would be a shame to divide that up and render it useless or largely ineffective.
Now, as for things like iPhone plans, and such, I think a simple "iPhone (UK) Tariff Help" can make everything easier. It's already done that way at the moment. What happens as the iPhone spreads to more countries? Should there be a separate forum for each country with an iPhone? That seems ridiculously difficult to administer, watch over, and organize. It seems much easier (on the mods especially) if users would simply designate their locale in their thread titles n'est-ce pas?
Information about discounts is also handled in a similar way (threads are often labeled "HE Discount-UK" or something to that effect. Is that too cumbersome? Is it really worth an entirely separate forum? I'm not convinced (and it seems most aren't).
So, I think I've outlined Question 2 fairly well. The forum does seem provide adequate support for sight users no matter where they are, and, separating the forum would undoubtedly lead to more trouble, which means that it is not worth it.
If you feel that UK users don't get adequate attention, then that's a separate issue. There are other ways to work around the problem aside from segregation (in fact, history has shown that segregation is perhaps the
worst alternative).
Once you all quit jerking your knees, maybe you'll see the sense in considering it.
I hope you don't consider my response to be knee-jerk.
Subscribing to the UK forum would help a lot of us to help each other, and it wouldn't get in anyone else's way.
I don't think it's a matter of "getting in the way," it's more a matter of whether or not it's a rational thing to do. Given what I presented above, I don't think it's a rational move.
and I think the idea of a New Zealand forum is only a little bit more reasonable than a Vietnam or Norway forum.
Aren't two of our mods Kiwis?
It's not like this would make a lot of work for the Mods.
I think it's best to let them make that judgement.

I know what you mean. At the moment I want to know who is getting their new MBP and when, but I have no idea of knowing whether the posts are US, UK etc...
Does it matter where the person is? The macbook pro is essentially the same. Or do you mean in terms of deliver times? If it's the latter, why not just ask them where they are in the thread (assuming it isn't obvious)?
Perhaps some way of being able to set it so that all posts from a certain country in a different colour would be cool.
If someone wants to share where they're from, that's their prerogative. Forced geographic indicators are no better an idea than gender identifiers.