The problem there is you have to have the money in your account. If they could find a way to do instant withdrawl/hold of funds, then people could use Dwolla to make a purchase direct from their account.
As it is, you have to put money into your Dwolla account and let it sit there until you're going to spend it, making impulse shopping a lot harder to do.
As it is, you have to put money into your Dwolla account and let it sit there until you're going to spend it, making impulse shopping a lot harder to do.