According to the Apple documentation http://developer.apple.com/library/ios/#featuredarticles/FA_Wireless_Enterprise_App_Distribution/Introduction/Introduction.html
In the steps listed to create an enterprise app it says:
Create an enterprise distribution provisioning profile *that authorizes devices* to use apps you’ve signed.
(My emphasis)
If the provisioning profile authorizes devices how is that done? I mean is the profile associated with specific devices somehow - I read elsewhere but don't have the reference that the devices need to have this profile installed. Is that correct, if it is then how do the devices get the profile installed?