I did look at there concept a few years ago and they have an interesting way they work, but i think there a bit concervative in the way the way that it's basically loans for houses in fiat people get there but maby they could start a subdivision for btc.
The way there system works is that people start sawing in advance and earn ponts for the time there money has been saved no interest on savings and when you will need a loan(usually when you buy a house or so) you can loan larger amount if you have saved more and for longer time than if you havent saved anything in advance and no interest on the loan either(in reallity it probably works out as you do pay some small fees to have the system pay it's own cost but it should be cheeper than a normal loan), but as there loans is for things in fiat i think it would be problematic for them to have people loan with security in fiat and loan denominated in btc but who knows the fact that ordinary banks is not involved and fees will by low on btctransaction there may be a small niech for them to start making loans in btc to for business in the btcworld if they have members interested in that.
