Hrm... this kind of baffles me.
You don't exactly "fly" one of these like a hot air balloon where you get to keep it at the end of the day and unless someone really "calls in your tag" you send up on the balloon you are never even going to know where it landed. You basically release a taped together trash bag to fly somewhere and you'll never see it or hear about it again. I don't see the fun it... ?!
Plus seems kind of iffy to me as to legality... If these things can really fly at 30,000-50,000 feet they could interfere with air traffic, they could land in wildlife preserves, or water, and harm animal life, land on peoples roofs or lawns creating a hassle, etc. If nothing else it's "littering" in my opinion.
The really iffy ones are the "candle balloons" they have on their site - that is just a bad idea all together - let's burn down someone's house or start a forest fire so we can have the enjoyment of "flying" a taped together trash bag.
From their FAQ:
Originally Posted by SolarBalloons
Is it legal to release these solar balloons? As far as we can tell...
In other words they don't have a damned clue... LOL