Braintree has teamed up with Facebook to offer its Ignition promotion, which waives the first $50,000 in processing fees, to any startup accepted to Facebook’s similar FbStart program, which offers mobile developers free tools and services. The partnership begs the question of whether Facebook’s long rumored payments ambitions are in fact legitimate or if the social giant may instead choose to partner with companies like Braintree (which is owned by PayPal) to help drive more commerce on its platform. Either way, it looks to be developers who win with this development as getting that social app off the ground or scaling one that’s already seeing traction just got a little bit cheaper.