I would love to be able to pass along credit card fees to my customers. I process payments for my consulting through Xero that uses Stripe integration for credit card processing. Essentially, it shows the product at the price I set but then on checkout it adds the credit card processing. Since it's a Stripe integration, I hope it would be easy to put it here as well.

This would be an amazing feature to add that would increase the potential for revenue for pretty much everybody. Food for thought.