Microsoft published a preview of SharePoint products and technologies 2010 technical  developer documentation. Archive white papers and SDK documentation. Not much, but interesting.

If you are so poor that you have to write CAML (it has nothing to do with CAML programming language) by your hand you appreciated to have an IntelliSense for that. MSDN Library can help you with VS.NET configuration.

Well after some time with MS Commerce server and playing with ASP.NET 2.0 (and hellish Crystal Reports ) I am back to Sharepoint. After small break I am currently working on intranet project… I played with some common functionality for Sharepoint projects like logging/exception monitoring for various types of controls (WebParts, WebControls and UserControls) to solve our problems once for all . I also played with OWSControls to be able to use them within our custom controls. But that is for 'old' version of Sharepoint, but version 2007 is knocking on the door so I am going to Sharepoint 2007 training this week(I am really looking forward to see something new ).