This is at least the second long time Twitterer to found a new business related to finance or payments (the other was Jack Dorsey's Square). I guess they're in

This is at least the second long time Twitterer to found a new business related to finance or payments (the other was Jack Dorsey's Square). I guess they're in a position to perceive a high level need in that area? Pushing money around gives you a lot more chance for revenue than dealing with mere tweets, I suppose.