I'm interested to know this as well. With the success of Heroku for Rails deployment, there's definitely room for a parallel player in the Django market — and probably the opportunity to make a lot of money, too.
The post states, in a pretty clear manner, that nothing really went wrong, they'd just rather do something else than run with this for years and deal with the investment headaches it'd inevitably produce.
I think what they just did was awesome. Do what makes you happy, striving for money is utterly pointless in the end.
After spending enough time with a project you realize that you no longer interested in continuing the project. I think quitting is the best choice at that moment, rather than questioning oneself everyday.