I just uploaded the slides from my talk at Microsoft on orders of magnitude in test automation. The talk is based on the article I wrote with the same name. In the talk, I use Marick's framework for agile testing to help frame where some of this automation fits on agile teams. I was really happy with the number of questions that I recieved after giving the presentation. Lots of good discussion on leveraging the heuristic at large companies, on legacy projects, and looking at the changing role of the tester.