Sure did! Bought a ticket to the book launch at Waterstone's in Piccadilly Circus. Mr Horowitz was on great form. He spoke very knowledgeably about the Fleming books and how he was approaching his own Bond novel. Made me extremely excited to read it!
When I met him he signed my book, shook my hand and kindly posed for a photo with me. The backdrop was mocked up to look like M's office.
Interestingly he said his favourite parts of the books and films were the bits where Our Man is briefed by M. I can dig that.
Very cool man, and well worth the trip into London!