There are two events in one on 17th June at the Microsoft offices in Thames Valley Park, Reading under the banner of the "European MIIS User Group Meeting". One track is for MIIS, and the second track is for Identity Management. Both are free to attend.
Here's the summary and registration links:
This year the Identity team at Microsoft has joined forces with TechNet to put on this free event. It is intended for User Group members, IT architects and security specialists and will feature two tracks covering MIIS 2003 and other hot topics in Identity Management. Track 1 will look at MIIS specifically; including functionality, implementation and best practices for deployment. Track 2 will explore Identity Management beyond the Microsoft environment through federation, as well as other Microsoft and partner technologies. There will also be updates on Microsoft’s roadmap for Identity.
Registration is separate for the two tracks but the intention is, once there you won’t necessarily be tied into the track you’ve registered for if something on the other agenda appeals to you. So there’s no need to register for both – just the one that is your primary interest.
Here's the links to register for the MIIS track and Register for the Identity Identity Management track