Yes, this is great news!!
However, I do so wish that the regulations had gone further and required caterers to provide a complete list of ingredients.
My DS1 is allergic to a fair few of the 14 that are required to be listed, but is also highly allergic to peas, lentils, beans, bananas, kiwi and a few other things - none of which are 'notifiable'... so things won't change much for us really.
Also, I wonder about the risk of cross-contamination. Are there any regulations about preventing this? Or is it only the actual ingredients which are covered?
We are skint and only eat in supermarket / shopping centre cafes. Last week, DS1 had a reaction to some carrots, because a pea had fallen into the carrots. He didn't eat the pea, just a carrot that it had been touching.
Sometimes, cafe staff use the same spoons for different things (for example, a buttered veg. spoon might be dipped into the chips which are 'safe'). Staff are sort of trained not to do this, but are not made fully aware of what could happen to people with allergies if they forget.
These regulations are great, but we still have a long way to go.
We often use McDonalds in emergencies - they are amazing, wonderfully informative, separate machines for everything and a full ingredients list on request (never thought I would be taking my children to McDonalds 
)