I am a developer for wpdk, and before i start messing around with wpdk, i feel the need to ask here. Is there a pattern i should follow if i want to create/modify your paypal addon to integrate a custom payment gateway? And is there a easy way to do this? :-)
The gateway in question is quickpay.net, which possibly is the biggest in scandinavia, so if I develop it, others might also be interested, so it will ofcourse be released to the public following standard GPL licenses, unless you (gravityforms) dont want me to.