A similar debate is ongoing here in the US. As part of the health care reform, in the next few years, chain restaurants will be required to display calorie info on menus and boards. I believe that there are a minimum # of locations required before it is mandatory. I do not believe that it will include carbohydrate information though but could be wrong. In general, I oppose nanny-type regulations, but as I diabetic it can be very frustrating to not have a good carb count!!! Unfortunately, despite the prevalence of D, there just aren’t enough of us that are willing to demand that info to create a free-market demand for it. So I have mixed feelings on the law.
Most chain restaurants here are already pretty good about providing some level of nutritional info in-store and online though, so the law will mostly just make it more accessible. I just went back to check Bertuccis and was happy that they finally put their nutritional data up online. They held out for a long time, but they finally put it out there. It will make bolusing for lab lunches a lot easier!