A well known photographer Chase Jarvis has been pioneering the movement of The Best Camera is the One That's With You (TM). A couple of weeks ago I downloaded the iPhone App and have been having fun playing around with it. It has given me a sense of calmness when I choose not to haul all of my camera gear with me.
I think it frees me up to look around and train my eye to see things differently through the lens. In the long term helping me with the larger camera. The photo above is SOOiP (straight out of iPhone) the one below has an action applied. Both were taken at Pioneer Place sky bridge in downtown Portland.
The iPhone App is pretty user friendly with several different 'actions' that you can apply to the photos that you take with your iPhone. It's not full blown editing software, but that's not the point right? The photo below was taken in front of an advertisement sign.
Whether you have an iPhone or not, take a week and shoot random photos with the camera that you can easily carry around. You might be very pleased with some of the shots!