Payflow Pro Gateway

We are revamping a site for a nonprofit customer using many of your premium plugins. They presently process online transactions using Verisign PayFlow Pro (technically now a PayPal company).

Since they sell both membership and items, we're using Membership Pro + MarketPress. I don't see a Payflow Pro gateway, nor did a search of the forums turn one up. Is that on the horizon, or should we build our own? If we build a gateway, will it work for both plugins? Also, if we build it, can anyone else use it?

Thanks -

Sue