I hadn't heard of them either, it looks interesting and seems to cover all aspects of living with diabetes. It's a little too far for me otherwise I would have considered going.
One thing to bear in mind if you do decide to go is that it's an event designed for all types of diabetes and their families.
Not everyone wants or needs to be on a low carb diet so any dietary advice will more than likely be based on the NHS eat well guide. The healthy lunch included will probably not be ideal for T2's so I would take a packed lunch, just to be on the safe side.