I can't wait for the Olympics when the QRA Typhoon is scrambled out of Northolt to intercept a wayward microlight. The cynic in me thinks today's incident was just another Olympic rehearsal.
More likely to be a Lynx or a Puma with a 'Follow Me' sign and a sniper as back up. Failing that, Rapier missiles will be in various locations.
And before the Opsec Outrage bus starts up, this has come from an Air Defence/Atlas Radar briefing where the MoD chap said that they want this information out there so that the public and pilots alike know exactly what is likley to happen if someone bimbles in to the Prohibited airspace.