I wouldn't touch your kids college funds with this, although it all sounds good CC could come out with a pr on monday and say they are going to discontinue the service and the pilot is over and then this stock will go down pretty far, pretty fast. Do I honestly think that will happen? No, but these are penny stocks which means it's more high risk.
Maybe to get some more money in your college fund take half of the profits from your 401K money and put it towards your college fund. If you even gain 10% on this you are making more money in a day than you possibly would in a mutual fund in a year. And if you gain 100%, well that's more than you can ever get in a mutual fund or (more than likely) NYSE or Nasdaq stocks.
That's just my personal opinion, what do I know I'm only a college studnet...