Following up on my previous post there now is a statement by Andrew, an employee of Prosper stating:

Our long-term goal, however, is to get a federal lending license. It will solve a lot of problems for us (state rate caps, primarily), but is simply harder to get. Nonetheless, it is something that we are pursuing aggressively. As with just about everything else we do, unfortunately, I cannot give you a specific date. Please understand that it is a huge priority for our business, and we are ushering the process as quickly as we can (unfortunately, it's more a process of waiting on regulators than us actually doing things proactively).