Iphone

I would love to know how people take fabulously clear photographs with their iPhone?
When I got up this morning and walked down the stairs to make the tea, the sky looked beautiful, but was changing fast.  My camera was downstairs and I didn't want to risk wasting time (good decision as when I did get down to grab my camera, the battery was flat due to still being attached to my laptop overnight!), so I grabbed my phone and took a quick snap.
I wish the quality was better!