iPhone ad hoc Distribution Code Signing Issue

So I spent a couple of hours trying to figure out why Mind Mountain's iPad distribution certificate wasn't being recognized by XCode during the build. I followed Apple's instructions on installing the provisioning profile, but found no joy.

Here's the solution: the Bundle Identifier (found in the app's plist) has to match the provisioning profile name exactly. It is case sensitive.

Figured this knowledge might save another developer an hour or two of her life.