Here’s how it works:

• Swipe up on the locked phone to get to the control panel
• Open the stopwatch app
• Go over to alarm clock
• Hold the power button until you get the “Power down” prompt
• Hit the cancel button and immediately hit the home button twice, holding it down just a little longer on the second press. Like, buh-baah. It takes a try or two to get the hang of.

Then you’re in the target’s multitasking menu. If you go to the camera app, you’ll have unrestricted access to the Photo Stream, and can share the pictures from there with email, Twitter, and more.

Update:
someone else figured out another work-around here.