I've been following Watsi for a while now and was excited to hear they made it into YC. I've always had a bit of a crisis trying to find a balance between humanitarian work and our craft as programmers. As a programmer, the odds are likely that your impact is localized to corporate or consumer products that have little to no effect on the quality of life of others. I'm tempted to go the Peace Corps route when I graduate, but I feel the opportunity cost is too high and that my skill set would not be useful.
Watsi seems like an amazing opportunity to resolve these issues- are you guys looking for interns or volunteers?