At a customer we are some creating a mini series of information sessions about key developments in the Microsoft development space
Neal Cross demonstrated a nice mortgage gadget last night. Here is the link to the programmable web mashup site Neal was using.
Here is one example application he showed (on his blog there are many more):
Michael went on to demonstrate WPF/e now known as Microsoft Silverlight (cross browser, cross platform presentation framework):
If you would like to create your own WPF applications, you can download a trial version (the release candidate) of the new set of Microsoft Expression tools (Blend)
To develop in WCF you will need:
Lastly you can see a wealth of information and tools on WCF here
There are a number of new community initiatives coming out. Keep ahead of the game here: