Love this. Have a friend that regularly sends $30 balloons a few times around the world. They routinely end up over interesting areas like hot spots in the Middle East or North Korea. Would be great to issue commands to a light weight camera but the bandwidth is so limited - payload is a factor too - can only be under 100 grams or so. Bandwidth is in the order of 30 bytes per minute. Would be fun to take picture remotely and then drop the payload/memory card when the balloon circled back to friendlier territory.