I imagine the answer here, for the time being, is, "No!" Even with the highest level merchant account (I'll admit that I am new to Merchants@Amazon) there is a scheduled deposit date...they transfer the funds to an account at pre-set dates. Something tells me Checkout by Amazon will operate via timetable deposits, too. A nifty trick where they get to hold your cash and earn interest. I am sure that works out to be a nice, reliable revenue stream for Amazon.