Well, there is that...
Yeah, I imagine that if I were a better photographer, I would be able to tell instantly (HAH! stretching it I'm sure) the difference between cameras, but I'm not so I have the Canon for my telescope, and the Nikon for 'art' pictures...
I made the mistake of asking for recommendations on a busy astronomy site and poked my finger in the Canon v Nikon nest. A Jihad swirled around me as I picked the best arguments for and against, and chose the Canon for the scope after getting some serious recommendations from some gifted photographers. (Prattling on I realize) I shot the 'Great Venus Transit' that took nearly all day, and have done some stunning shots of the Moon and sunspots. But in the end, after all the sturm und drang, I think I made the right choice because the adapter for the scope was easier to come by for the Canon.
One thing is for sure (
returning to topic) is that Apple has the ability to totally screw this up bad. Trolling photography sites for recommendations, I found them filled with complaints about this or that type of lens mount. People lashing themselves and their equipment because of loose lenses and striped mounts and having to jettison beloved equipment because of mount failures. (And cheap Chinese knockoff lenses being crap. Surprised?)
I viewed the camera Jihad the same as the computer Jihad, the dirt bike Jihad, the 2-stroke v 4-stroke Jihad, the mountain and road bike Jihad, the tube v transistor amp Jihad, the CD v vinyl Jihad, the Phish v Grateful Dead Jihad, the Crest v Colgate Jihad... Did I miss any? I hope I continue to...

EDIT: One thing that I have noticed, and I'm not talking after doing extensive research, but just watching people at concerts, the iPhone camera (sucks) is less optimal at a concert venue... I have gotten some incredible shots at concerts, but the quality for the vast majority has been tragically sub-par. Someone told me about a concert goer being confronted by security at a concert for taking pictures, and after seeing it was an iPhone, the security guard let the guy alone saying 'I can't throw you out for using an iPhone to take pictures here, they aren't going to be any good anyway.' It's probably internet lore by a 'Droid fanboy, but I have tons of blurry and overexposed pictures to remind me of concerts I've been to. *SHRUG*