This is an interesting and promising development, I'll be curious to see how things to proceed.

Regardless of the efficacy of transplants for HIV, bone marrow transplants are an important treatment and not enough people are registered as donors. It costs you nothing to get on the bone marrow registry and there's no obligation even if you're a match for someone -- but if you are, the procedure might have a little discomfort, but saves a life. It's a fair trade.