Tips for using your iPhone

Here's a well presented article on getting better pix from your iPhone camera. Don't discount it's value and abilities. It's always in my pocket, it's unobtrusive (everyone is grabbing phone shots--I don't stand out as 'photographer') and I actually have several iPhone images represented by Getty. End use is the key factor when you're dealing with a camera that has a lower MP count; lower resolution. I get very nice 8 x 10s but I wouldn't try for much larger than that. For computer screens there's no problem. Remember, 10 or 12 years ago an 8 MP digital camera was considered high end. 
http://bermangraphics.com/blog/iphone-camera-photography-tips/