The guys at Final Cut King had a busy weekend. They sent two iPhone 4S smartphones to nearly 100,000 feet with a helium balloon.
The hard part would be waiting for them to come back down.
We launched 2 iPhone 4S phones with a weather balloon to go up to 100,000. We put one of the iPhone 4S's on an interval photo timer app and the other on video mode. We used s Spot GPS tracker (though I would not recommend it because it only tracks in 15 minutes increments.