Thank you. But I think I knew about this one...

Being tired of not finding a truly adequate solution, Marc and I teamed up to create what we believe is a long awaited solution.
This solution will draw its subscriber base entirely from an Infusion database and ON THE FLY! We chose to go this route because we know that a number of successful Infusion users, such as Marc, have literally thousands upon thousands of users and a batch update is just not an acceptable solution.
This Wordpress plugin pulls the necessary subscription information from Infusion in real time, during the login process. The moment a payment has processed and the appropriate tags have been assigned, the user can login without manual intervention on your part.
The same happens the moment a recurring payment fails to process.
Everything is tag-based, automated and as Infusion-centric and intuitive as we could possibly make it.
I tried to make it as fast as possible with the smallest footprint possible. I basically rewrote the SDK for that purpose.
Marc will be coming out soon with information pertaining to the initial release.
We are already discussing features to be included in the next release so if you already have specific ideas, it's a good time to make them known so contact him as soon as you have something in your wishlist (pun intended).