I setup a project on XCode 4.3 and IOS 5 without using storyboards for both iPhone and iPad using the default Master/Detail setup from the create new project dialog.
The
I was puzzled by the templates implementation of the Master/Detail view. I asked a similar question:
How to update DetailView using MasterDetail Application Template
You can use the detailItem (id - so you can pass in a reference) property that is set up by default for the DetailViewController class.