Please don't let this site go downhill like other popular sites
I read the posts here and it makes me sad. So this guy has a great idea for a camera add on and without even understanding the options or possibilities, you folks are decrying/mocking it. In addition, you are criticizing his "writing", whereas if you had as much sense as you claim he doesn't have, you would know that that is a news article written by someone else. So, either they wrote it wrong or macrumors transcribed it wrong. In either case not his fault.
So, those of you who are happy with your iPhone cameras, be happy. I use mine on bright days outside too, but for pretty much anything else it sucks. If I am archiving family events (most of which happen at night) I don't want blurry, grainy, or bizarrely colored flash pictures.
So, a $150 add on that will let me do/have these things would make it better than my standalone $250 camera that I carry around for pictures (and in some cases better than my DSLR):
Use my large iPhone screen to set up the picture and review it afterward.
Geotag my photos.
Save them right on to my phone for upload to Facebook or photo stream.
Email them to family members on the spot.
Save me the hassle of taking pictures on a memory card, transferring them to my computer and then back to my phone.
Print them right from my phone.
Real zoom (not digital zoom)
No separate battery to remember to charge.
Hopefully not as big as a whole additional camera (since most of the function is being handled by the phone) because filling both pockets with devices sucks.
If this thing means I can take reasonable flash photos at night, sign me up.