I imagine they would have an incredible amount of learning from the past several years that they would be willing to share. A lot of this has to do with perfecting the user experience for potential lenders / donors. It seems like you're doing a good job on this front but no doubt there's room for improvement.
I've been a loyal Kiva lender now for years and watched them grow to $375M in loans. I think you're on to something similar with tremendous potential.
Members of the Watsi team work for Kiva too (at least as of several months ago): http://news.ycombinator.com/item?id=4424745
Of course, the nice thing about Kiva is that it is a loan, rather than a donation, which allows you to use the same initial investment to help lots of people again and again.