I am a bit late, so you might already have read this somewhere else. Microsoft is organising an ESP Developers Conference in both Orlando and London. For more details check the ESP blog.
The one in London is at the 19th of November and I am tempted to go there myself as well. At the moment I am looking for affordable travelling options. So maybe I will see you there.
I registered today and found a nice flight. So if you are also coming, see you there.