SharePoint 2010 SDK Publicly Available

Thats right fans ..
 
Published earlier this month, the SharePoint 2010 Technical Preview Developer Documentation.
 
This contains a PDF whitepaper on updating the new ribbon interface (which looks like it’s just 2007 CustomAction features with a new UI).
 
The real crown-jewel is the 8MB help file which contains the full SDK so far. Exciting stuff!