Dwolla is going to eliminate ACH
Who owns ACH?  The banks do.<p>Who owns Dwolla's replacement?  Dwolla.<p>Banks are smarter than that.  Adoption of this will be zero.<p>Instant transfers mean that someone can bankrupt an entire bank - instantly.  If someone hacks this brand-new untested system and issues 100% withdrawal orders for every customer account, B of A and Citibank and Wells Fargo and HSBC can all be bankrupted between 10:32:24 and 10:32:25.  Ooops!<p>ACH is slow and revocable <i>on purpose</i>.