New iPhone 3G and iPhone 3.0 software has arrived, and the New York Times technology columnist David Pogue is on top of it with a thoroughly updated edition of iPhone: Missing Manual. 3G iPhone Picture-Taking Goodies by David Pogue If you have a 3G iPhone, then you? back in a few extra camera goodness. ? That's telling you where the iPhone thinks that the most important part of the photo. ? That s where he will focus; it and? S what looked to calculate the overall brightness of the photo (light) it?; S part that will determine the white balance the whole scene (ie, color cast). Cool thing is that you can hit anywhere else in the scene to move the white square? To reset the camera focus, exposure, and white balance. ? Here's when you might want to do this press: 1) When the entire image looks too dark or too bright. If you press the dark part of the scene, you bright? Will be on view all photos enlightening, if you press section, all photos will be darkened a bit). 2 When the scene has a color cast. If the images look, for example, press a little bluish or yellowish, different places in the scene? one who is very concerned about.