If you’ve purposefully been ignoring the announcements out of PDC, I don’t blame you one bit. Everybody knew it would be the unveiling of Microsoft’s “cloud computing” initiative, and just about the only thing we didn’t know was the official name of it...
About a month and a half ago Ben Scheirman wrote about testing TempData in ASP.NET MVC . It's good stuff, and aside from changes between Preview 1 and Preview 2, it still works fine. (See Scott Hanselman's post for some Preview 2-friendly mock helpers...