Custom payment gateways for Market Press

Market Press has so much potential going for it but I am really limited by the limited number of gateways supported. My customers think paypal or google processing makes their sites look cheap and Authorize.net has just really restricted the types of products sold. Is there anything in the works to make it easy to plugin custom payment gateways? I have written several for Zen cart but I am not sure how to go about creating a custom payment gateway for Market Press