In my capacity as a software quality expert at http://searchsoftwarequality.com, I recently answered a question regarding software testing reports. A writer asked how to build a testing status report focusing on test execution criteria, test case failure rate, and bug rate.
You can see my answer posted at http://searchsoftwarequality.techtarget.com/expert/KnowledgebaseAnswer/0,289625,sid92_gci1345318,00.html
What do you think - too simplistic? Or do you agree that these are the bread-and-butter reports for software testing status?