Overnight it looks like there are a whole load more sessions which have appeared on the PDC site, including a number of sessions for Windows Azure.
In particular, these ones caught my attention
Storing and Manipulating Blobs and Files with Windows Azure Storage
Patterns for Building Scalable and Reliable Applications with Windows Azure
Developing Advanced Applications with Windows Azure
Windows Azure Monitoring, Logging, and Management APIs
You can see more details about them here.