Hi there GF team. First up, I just wanted to say fantastic work on the PayPal Add-On. I'm testing it right now and so far so good. No post submission until payment received. Awesome.
I do have a couple of questions though please:
(1) How can one select a currency for payment other than USD?
(2) Technically, how is it that the PayPal integration is so simple, i.e., there being no need to disclose one's PayPal logon details at the WP end? I love how easy it is but just wondering how that's possible technically.