I wish him well on his endeavor because I'm not a fan of CC fees, but from a consumer standpoint, I don't see any benefits. CCs provide (i) a line of credit, (ii) fraud protection, and (iii) rewards/bonuses. All of these can be incredibly valuable, particularly (ii) - you never appreciate the no-liability fraud protection of a CC until you discover how difficult it is to deal with situations in which your bank account is affected.

If credit cards were not already the dominant electronic payment mechanism (i.e. VISA/MC were just starting like Dwolla is), Dwolla could possibly win out because businesses could refuse CC's. Not going to happen now, at least with regards to business-to-consumers. And I don't think most B2B transactions were conducted through CC's anyways.

They seem to be doing okay now, but I don't see any secret sauce that's going to make them anything more than a fringe player in the payments industry.