Sorry but, I think your statement is just silly. Art is art and a photo can be anything that you want it to be. Where is the rule book that says "a photo should show what the eyes see"? Photographers have been manipulating images in the darkroom since the beginning.
I too am sometimes a purist with my film photography; I tend to not do any post-processing, but the wonderfulness of the iPhone is the amount of creativity you can have with all of the apps available. It's almost a whole new art form in itself thanks to exhibitions like
P1xels At An Exhibition (of which my iPhone photography has been exhibited in galleries on several different occasions thanks to them.)
And with THAT being said, here is both my most manipulated image, shot with the iPhone 4S (using the 645 PRO, Snapseed, Photoforge2 and Color Lake apps) -
Image
And a more traditional (minimal edits) studio shot, also with the iPhone 4S -
Image
... in other words, again, and in my humble opinion,
a photo can be whatever you want it to be!