RSInvoice or RSBilling - RSJoomla's Next Big Thing Hopefully.

I feel a Invoice or billing component would be an excellent addition to add to RSJoomla portfolio of products.

Even though there is a handful of them out there, only 1 0r 2 are actually good, and then the ease of use narrows it down to one.

I know RSForm can generate invoices as a pdf files, but a full fledged invoicing system that can integrate with RSForm, RSMembership, RSMail and RSEvents would be a welcome and great product that the Joomla community would love.