I got an iPhone 4. It's absolutely brilliant. The biggest thing for me isn't the display, the design, any of that FaceTime stuff, but the camera. And the video camera especially. I'd really like it if there was a way to treat video that theiPhone produced in the same way that you can treat photos, I guess sort of a grading app for video. I expect that's a big ask.
In the meantime, my favourite photo apps seem to work pretty good with the new camera and sensor. This one was processed with Mill Colour's Cross Processed effect, and then with TIltshift Generator for the vignette and the depth of field effect. I might post a gallery of shots on my news blog, but I'm definitely going to start posting more iPhone photos here as I have it with me all the time.