I am looking to setup a mobile payments processor startup in US and India. The idea is something like Square to give you little more clear picture. I think credit card processing fees is a tricky thing to figure out. Google checkout is expensive.

Comparatively to India fees for gateways and merchant accounts are cheaper in US.

Out of all the crowd, Dwolla seems to be cheaper. Besides dwolla it's hard to get 2.75% fee and save something for yourself. Samurai seems to be cheaper if used only as a payment processor.

Few links containing fee info - https://samurai.feefighters.com/pricing

http://paysignet.com/keyfeatures.asp#PriceingSh

http://www.ccavenue.com/pricing.jsp

https://www.dwolla.com/fees

I need your help in figuring this out.

Much Thanks.