I'm sorry about that. Maybe I was too ignorant.
Cheers.
Still, it's puzzling since everything UK Siri says it can't do can be achieved through touch input (with the exception perhaps of Yelp searches). And from the promotional videos it appears that phrases such as "What's the traffic like around here?" just open up the Maps app. I'm not sure why that's not an option for everybody.
I wonder if the limitation is due to inaccuracies in interpreting location names? Can those in the States ask Siri questions such as "Show me a map of Paris"?