I’m a few days late on this (I was on vacation) but Typemock Isolator 4.3 has been released and has some great new features like Ivonna integration for ASP.NET testing. Check out the blog post on it and then go get it!
While I’m on the subject of Typemock, Roy Osherove has offered up a sneak preview of the new Typemock Racer tool he’s working on that will help detect thread deadlock. Very promising, indeed. Check out his site for some great screenshots.