Here is my smart-ass comment.
I do import 100% of our (myself & wife) iPhone photos into Aperture... but truthfully... they are pretty much ignored.
I have projects for "Jim's iPhone" and "Deb's iPhone". Once in a blue moon there is something in there I want and will move it to a more appropriate Aperture project... but mostly they are junk.
Other than importing to Aperture and then ignoring... our real workflow is to take pictures with the iPhone, and either email them to friends or family or post to facebook... all from the iPhone.
I know there are others who use an iPhone for serious (or semi-serious) photography. I guess that I'm not one of them.
/Jim