I think you will run into a bit of a chicken and egg problem. Insurance companies won't like it because it would be bad for them for something like this to exi

I think you will run into a bit of a chicken and egg problem. Insurance companies won't like it because it would be bad for them for something like this to exist at a consumer level. And consumers won't use it because they would need some companies there to participate. So I'd either factor in starting an insurance company as well (to sell on your market) or do P2P insurance, which would be very interesting. Let me know if you go the latter route, I might be able to help out. Insurance is the most profitable industry out there, selling a mostly commodity product. It's definitely a very ripe industry for disruption.