.NET Framework 4 & Entity Framework

Entity framework
Entity framework has been updated with database first and codefirst programming models. Find two good article below.

http://weblogs.asp.net/scottgu/archive/2010/07/16/code-first-development-with-entity-framework-4.aspx
http://weblogs.asp.net/scottgu/archive/2010/07/23/entity-framework-4-code-first-custom-database-schema-mapping.aspx

VS2010 Productivity Power tools
Some of the cool features that really improve the productivity.
http://weblogs.asp.net/scottgu/archive/2010/07/19/vs-2010-productivity-power-tools-update-with-some-cool-new-features.aspx