Cool idea, but I'm experiencing cognitive dissonance. The great promise of Bitcoin to the regular consumer is supposed to be transactions without the surcharges of financial institutions and privacy, yet here we have a service that takes a large cut even after their money processor takes its cut, and requires you to sign up through an organization hardly known for its privacy (Facebook).

I don't mean to beat on Tinkercoin, because I think it sounds like a totally decent way to....well....tinker with coins, but I am critical of the overall hubris behind Bitcoin.