I guess Wall Street will just counter this, as the banks did with Bitcoin. Steal the concept and apply it themselves. Why do they need to work through Patrick Byrne to do this, if they can use the Blockchain to do it themselves.
It's going to be interesting to see how this play out. ^hmf^
"The banks?" ... what has any bank done with bitcoin exactly besides allowing a PR agency or two to say they're investigating?
What they disclose to the public is far lesser than what they actually do. Goldman Sachs conducted a session on Bitcoin to its top clients far before they even acknowledged that something like Bitcoin exists. So you can't be sure what they are up to.