Awesome Miniature Pro - Tilt Shift (Android) app for $1.99

Tilt-Shift Maker is a photography app for Android. It features three types of blur effect (radial, oval, and linear) to add thousands of different moods to your pictures. Control the strength, focus, and area to change a photo in any way you want.  You can also adjust exposure, contrast, saturation, and white balance for unlimited freedom of color adjustment. Check out how the effect is being applied to your picture in real time, for best results. Try giving your photos a vintage look with vignetting.++