What happens when you give 16,000 kids $20 to turn a profit and make a difference?

Recently Tim Ferris twittered this:

What happens when you give 16,000 kids $20 to turn a profit and make a difference? This: http://ping.fm/0sReH

I suggest you check it out, it's pretty cool. One kid turned £10 into £736.77 in a pretty funny way.
The average profit in one month was £42, compared with a return of just 2p from a savings account.

Amazing what kids can do if we give them a chance!

Cheers,

Ramin