We've been emailing Sean recently to ask him about Samurai and I guess this explains the no response. I really loved what he was doing and sung the FeeFighters praises from the mountaintops whenever I could. I really wish that product had stuck around. All the info that they were producing on their blog was really just gold for businesses. The education they were giving on interchange plus pricing, etc, was really important (but I guess becoming less important now that places like Stripe are hiding all those complications behind their simple pricing).