MSB3061
I'm running the Feb CTP, including Orcas. Nearly any time I try to rebuild an application I receive the warning in the subject and the message "Cannot delete the project output: is the file read-only?" This is, despite the warning, a build failure. The file that can't be deleted is MyApp.vshost.exe.
You know what, I just figured out what it is. Orcas locks this file if you have any XAML files open (assuming for the designer?). Is this a known bug? Is there a workaround other than closing XAML files?

