I also work for Rackspace. While it is in our best interest that FathomDB sticks around, it's also in developers' best interest to use it. Why? No lock-in. We like these guys. We think they work hard, and they truly are a service oriented company. And if you decide you want to use them with us, or with Amazon, or any of the other clouds that emerge, FathomDB won't lock you in. Good stuff.