The reason for my slightly odd question is simple. I'd like to run my console as 32-bit on my dev box simply because of the convenience of edit-and-continue, which can be a time-saver for silly mistakes - just fix them on the spot and go on.
But I'd also like not to have to change the build configuration, because it's under source control and I'll forget to set it back to "any cpu" and we'll end up deploying the wrong image version if I set this to "x86".
Is there a way that let's me get the best of both worlds?