The Astdroid project aims to write a stable Android app that will aid in the tracking and retrieval of a smartphone while it hitches a ride as part of the payload of a weather balloon, all the while snapping photos and video.
The Astdroid project was founded at Kickstarter.com.
Coding and experimentation is currently underway. You can find much, much more at www.Astdroid.com.
This app has not yet been released to the Android Market.