If you want a super-steady shot from your iPhone's camera or want to take pictures from a tripod, you can easily use the volume button on your iPhone's headset to take fine pictures.  There's a way to use the headset that comes with your iPhone as a tethered shutter release for your phone's camera. you can put your iPhone on a DIY tripod and take a picture of you and your friends from far away. This nifty little trick comes courtesy of iOS 5, so you have to be up to snuff with your software patches to make this work.