Tenx to Matthijs Hoekstra for pointing me out. See the nice PDC stuff on Unified Communications! Some nice views on Wave 14 and the new Communicator interface.
Session 1: (Chris Mayo)
Learn how Microsoft Communications Server and Microsoft Exchange provide a comprehensive and flexible communications platform for developers. Get a first look at the next generation of this platform through a series of demos and code examples. See how to embed Communicator features in your application using new Microsoft Silverlight and Windows Presentation Foundation (WPF) controls, and learn about the new API to develop full custom clients for Communications Server. Also see how the UC Managed API 3.0 provides access to the new Voice-over-IP features of Communication Server.
Session 2: (David Ollason)
Come take an in-depth look at how to integrate and extend the Office Communicator experience into your Windows Presentation Foundation (WPF) and Silverlight applications. See how to provide the same integration experience as Office and Outlook including contact search, contact lists, presence, contact details and more. Learn how to pass contextual data from your application using the new contextual conversation API.
Source: http://microsoftpdc.com/ (Check it out!)