When you want to take a screenshot of your iPhone, just press the home button and the sleep/wake button. It will automatically take a screenshot and save it to your iPhoto camera roll.

Take as many screenshots as you need to walk somebody through a process.

You can import your images from iPhoto, iCloud, your desktop, Dropbox - wherever your images are stored. Select all the images you need, and they will be imported to ScreenSteps as individual steps.

Note: You may want to autoscale your images so they aren't too big. Click here to learn how to do that.

Add annotations to the screenshots such as arrows or circles, and write your tutorial.

Even though you can't write a tutorial about your mobile device on your mobile device, it's still pretty simple to do, using ScreenSteps.