Detailed Guide to Provisioning for Unity iPhone App

After following the steps to get setup and started on Unity for iPhone, I am stuck on getting the iPhone examples to work. By default, the SDK seems set for 4.1, and my device is on 4.2. And then there are provisioning issues, which the steps gloss about, saying that it'd be a specific difference per app...

Is there a more detailed guide to setting up provisioning?

Do you have to create a new provisioning cert for each app?