Packing via Corona and Full Code Availability

Strange title...but what I would like to know is the Corona SDK 'packs' the app up for you, then creates a .app file. I then install that through the organizer on the phone.
The question is, can my developer, who doesn't use Corona SDK simply view the files that it creates in Xcode? Or must he use the Corona SDK to make changes to it? I'm creating as much as the game as I can then would like to enlist his help.
Thanks in advance!

views:1069 update:2011/11/19 17:31:56
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