While it would be good to have many providers, time is an issue for some of us, so if you could FIRST add just one or two payment providers (one that does adult, another that doesn't...both that handle recurring) right away, and then work on the rest later. But FIRST do the one that can handle adult, and get it to us, because PayPal won't do adult, so adult sites have NOTHING at the moment.
Thanks, - Mishka