Check out this blog post for a description of the enhancements made to the load test execution/post run UI's for the Orcas VS release: http://blogs.msdn.com/slumley/pages/load-test-execution-post-run-ui-enhancements.aspx

Check out this post to see some of the enhancements to the web test playback UI: http://blogs.msdn.com/slumley/pages/web-test-playback-enhancements.aspx

Check out this blog post for more information on the Load Test Summary report feature available in Orcas version of VS: http://blogs.msdn.com/slumley/pages/load-test-summary-report.aspx

Check out this post for information on how to use the new Manage Load Test Results Feature: http://blogs.msdn.com/slumley/pages/managing-load-test-results.aspx

Check out this blog post for information on the new Web Test Correlation Helper feature which will be available in the Orcas release of Visual Studio. http://blogs.msdn.com/slumley/pages/web-test-correlation-helper-feature-in-orcas.aspx