Competing with Paypal, Google Checkout and the rest would be difficult without major funding. You need to find a USP such as https://squareup.com https://squar

Competing with Paypal, Google Checkout and the rest would be difficult without major funding. You need to find a USP such as https://squareup.com https://squareup.com or http://flattr.com/ http://flattr.com/ If a USP to compete with the likes does not come to mind, then find a niche business activity that makes payments. Then design it around their and their customers requirements, I have a similar project on the drawing board.