If you like taking and sharing photos on your iPhone, add this to your list of must have applications: Gesture. The $4.99 application lets you turn any photo you take on the iPhone into a really cool artwork-type image. Easily pointilize the photo, or zoom in and do the detail work yourself. My quick artwork is above, with my dog Laguna acting as the model.

Altered images can be saved in the photos folder and/or posted to the web (example). Publicly saved images can be viewed here.