I need some quick iPhone advice. I'm part of a group of people planning to send an amateur weather balloon rigged with cameras into the upper atmosphere next year- aside from wanting to photograph the earth from high altitudes, It'll also be our way of scattering our dog's ashes and giving him the awesome send off he deserves. Here's the plan: Balloon will reach a certain altitude before bursting and releasing the rig containing the cameras into a slowed decent back to earth. Since we are on a tight budget and this rig is undoubtedly going to land a significant distance from where we release it, we're planning to have a spare iPhone 3GS onboard and using Find My iPhone to locate the rig once it lands. Having never used the app myself, What seems like a decent plan to me could be flawed in a way I haven't foreseen, so I'm asking you more highly informed folks: Is the app accurate enough to be worth using like this? Does anyone forsee any problems with this? (other than the chance it'll land outside of 3G coverage or break upon landing of course) Any thoughts welcome!