is there the third way to install application onto iPhone device?

[michael_wang]

Hi guys,
It seems there are 2 ways to install application onto iPhone now,right?
The first method is download it from App store/ Ad hoc after application distribution.
The other way is that tie the iPhone device UDID to App ID of iPhone developer, then download and add the available Development Provisioning Profiles onto iphone,then build and debug application using connected iphone device in the Xcode.
I want to know wether there is the third way to install application onto iPhone device?
Sf so,anybody can tell me how to do ? or give me some suggestion?
thanks!

[Cochrane]

There is no official third way sanctioned by Apple (though I'd consider ad-hoc and app store two ways, so it would be a fourth way, but never mind that). So with an iPhone that hasn't been jailbroken, there's no other way.