iPhone Pictures: Best Camera and ColorSplash Make A Great Combination
If you're not familiar with the two iPhone apps Best Camera and ColorSplash, you should be. 
Best Camera is relatively new and makes it easy to take pictures, edit them with various filters, and then share them. You can apply filters more than once to get more of a given effect. The real beauty is that you can slide all the filters around, changing the order in which they're applied, to get different results. Experiment with it and you'll find there's a lot you can do quite easily.
ColorSplash does one thing, and does it well. It desaturates your photo to black and white, and then lets you "paint" with your finger, restoring the original color back to the areas you paint.
Using the two of them together allows for some very interesting photos. Here are a few of mine.
