An updated version of SharePoint 2010 is available for download which is around 334Mb. The Microsoft SharePoint 2010 Software Development Kit (SDK) contains conceptual overviews, programming tasks, code samples, and references to guide you in developing solutions based on SharePoint 2010 products and technologies.
What’s New in this SDK Update
This free update replaces previous 2010 versions of the SDK and includes the following:
* New code samples: Silverlight List Viewer, plus new samples in Business Connectivity Services (BCS), Enterprise Content Management (ECM), and User Profiles and Social Data
* Updated documentation, including: new and updated How To, reference , and conceptual content
* Updated IntelliSense XML files for tooltips and auto-complete in Visual Studio
Here are two MSDN topics listing new and updated content and code samples in the AUG2010 version of the SDK (14.0.4763.1031):
A complete listing and description of the 44 code samples currently available in the SDK can be found here on MSDN Code Gallery: http://code.msdn.microsoft.com/sp2010sdk.
Have fun with SharePoint :)